This adds a top-level BUILD.gn file and defines it as the root (by
removing the root_build override in //.gn) and adds forwarding rules to
the top-level target definitions in //build/gn/BUILD.gn. Also moves the
file generation steps to the top level BUILD.gn file.

The other rules in //build/gn/BUILD.gn should move too, but they are
currently referred to by infrastructure configuration files. They can
move after this lands and rolls to GI and the infra configs are updated.

Change-Id: I2043cc507944158cfe691db884d9fc79c2e80cc4

This is the first of two or three changes that implement TextField for
input methods making changes to legacy InputMethodEditorClient text
fields. Once this proxy is complete, the next steps will be:

- Migrate latin-ime and any other input methods to use this new
  TextField interface, their edits still proxied to legacy text fields.
- Bring up a new default input method for physical keyboards, replacing
  the functionality previously hard-coded in Ime.
- Allow Flutter and other clients to implement a TextField and expose it
  to this service, connecting to any input methods.
- Migrate all legacy text fields to the new TextField API.
- Shut down the proxy when no InputMethodEditorClient users remain.

In this change:

- Added conversion from legacy TextInputState into new TextFieldState
- Added functions for creating and accessing TextPoints
- ImeService now also serves a discoverable TextInputContext service
- Ime now also optionally serves a TextField service for input methods,
  although it currently replies to all requests with BAD_REQUEST.
- Added support for running the standard TextField integration test
  suite on the TextField proxy implementation in Ime, although since
  that implementation is still a work in progress, this test is marked
  as `#[ignore]` for now.

Change-Id: Iec302a734c25b6e4daae8d467f9b0545f8361da1

I tested this by `fx format-code`ing in libc and in the zircon public
directory.

Change-Id: I611bbecbedb29968247ceebda1b517499d10345d

It's not bad content; it's just not content that we can handle right
now and it's also content that we don't need.

Test: Full build in CLion.
Bug: BLD-393
Change-Id: If1b23351754243056b52efbdf79617256292521f

Some host binary is generating //default.profraw. It probably shouldn't
be littering, but git should also ignore these files.

Test: None
Change-Id: I0fa0ce47a7671513a30c81cbb6dc1e8a4f7b2189

Change-Id: Ibbe4515cfe9fdb63dcadb2eb1e7d9b148e3242c3

Bug: ZX-3357 #comment numeric limits
Change-Id: Id66b37d37b6c715e2874f474ff8f481e553a7970

Test: fx build
Change-Id: I66d53aa427e6c1fda1273c41a574c6bfa1387b12

Change-Id: Iae0e7d2251e59bf7ad622bd87ddd41e863b2f611

What was previously bt-host-integration-tests no longer exercises solely
the bt-host subsystem, so the name is now a misnomer. We rename the
binary to bt-integration-tests to more accurately describe it. In
future, we may split the tests into multiple binaries if there is a need
for it.

Also add a README.md for the integration tests and link it from the top
level bluetooth README.md, to fill in a documentation gap.

Change-Id: Id4e3db89b37034ba39c75a056b3e980703c9a734

Also:
* Update Display format to return new ?hash=$MERKLE format.
* Add test to check FuchsiaPkgURI -> string -> FuchsiaPkgUri round-trip
  for all the existing "valid" URI cases.
* Update the-book/package_uri.md to describe the new format.

Bug: PKG-560 #done
Test: astro still boots.
Change-Id: I0a2c5201e4ae6ef97e5aeab7d77fa125a551d0bf

Since the rust tool chain is updated to 1.35.0, we no longer need
the allow deprecated hack.

Bug: SEC-226
Tests: local build
Change-Id: I42eafc60a37512caffdd423cef9539077e9335cc

- Renamed btlib -> bt
- Made usage of "::bt" vs "bt" consistent
- Made namespace declarations consistent s.t. namespace bt::foo:bar
becomes:
    namespace bt {
    namespace foo {
    namespace bar {

Bug: BT-757 #done
Test: bt-host-unittests and bt-host-integration-tests
Change-Id: I45eee4a070e18df90a63390ba1c869a87f15ce48

Struct members are added to specify whether memory should be allocated
in the RAM domain, and a function is added to check what coherency
domain the memory is in.

At the moment the new struct members are ignored. That will be changed
in a follow-up patch, after drivers are changed to initialize them.

Change-Id: I34f9a7215c8d4881baac0f15baeb6535478a2c04

WLAN-996 #done

Test=Verified auto-connect behavior across device restarts.

Change-Id: I52161792063deb2175c8d0ae939441d171e093f6

The cloud TUF repos are not set up yet, but those can be useful through
a local TUF repo.

Bug: DX-980

Change-Id: Ia3314b91ed7b63a7ca62aa3889f992c5852d43e7

The PowerVR firmware is a MIPS ELF binary, which the rest of the code
was trying (and failing) to handle.

Change-Id: I8b5bed778dac90678d02d626e9a5d4b2284ec640

This interface isn't exercised until the next patch in the series, where
we remove zxcrypt's self-unsealing and make the paver and block-watcher
explicitly unseal zxcrypt devices.

Change-Id: I89300d24ed6ba37801e8e953925e5678efc4cd71

This patch adds a UI toggle underneath each replica view and flips each
toggle when clicked.

In a subsequent CL, we will plumb this down to the in-memory cloud
provider to control synchronization state.

LE-663

Test: tiles_ctl add fuchsia-pkg://fuchsia.com/voila#meta/voila.cmx

Change-Id: Ib49d018ef56b3881779827afbba462e7b6aa265b

Also try to improve the error messages that get logged.

TESTED=FUCHSIA_IPV4_ADDR=<wrong ip> ./out/x64/mytest
then watched it retry hopelessly. The test had to be modified to
increase its default timeout.

Change-Id: I5b3a7b9d791d7b546cbca831a82c6d5207a64372

This changeset adds ZX_PROTOCOL_POWER that operates on a particular
power domain. This has the same semantics of GPIO for now. A subsystem will
request for a power domain in its board driver. The device driver will
get the power protocol on a power domain, using the index of that domain
in the array of power domains requested in their board driver.

Test: Used the power protocol apis in mt8167-touch and was able to
enable/ read status of a domain correctly.

Change-Id: I47a8809264e89e3abe466956baf079ac53dbdb90

This is a much better place for this logic.

While we're here, don't show symbol repos in sym-stat if we don't
actually find a .build-id folder.

Change-Id: Ia84e63a74847c931a00ca0154616a3242ca7eba8

Some clients need to negotiate what level of cache coherency that is
used with a buffer. For example, the Intel display hardware isn't
cache-coherent with anything else, while the GPU is cache coherent with
the CPU, and can be configured to disable caching for some textures.

It's much more efficient to only require that data be in RAM in these
cases, rather than require extra cache flushing. Add a flag so that
clients can advertise RAM domain support, and some simple heuristics for
when to use it.

CPU coherency is still the default; advertising support for CPU
coherency is temporarily added to the display drivers, even though it's
not correct, until consumers that require it are moved off.

Change-Id: Ie4a7295d6c08223193a1c2e04a399a91112e34a9

Change-Id: Ide99124c5630b1d4334a4a1136fe946a716e4dc8

This adds a new safe math library based on Chromium's base/numerics.

This library is dependency-free and header-only, and provides
well-defined semantics for safely and performantly handling a variety of
numeric operations, including most common arithmetic operations and
conversions.

One common use is to range check and terminate on failure. e.g.:

    int some_value = ...;
    size_t buffer_size = safemath::checked_cast<size_t>(some_value);

will result in program termination if some_value is out of range for
buffer_size. There are many other usage patterns described in README.md.

If you land here in git log and wish to update this library, see
zircon/third_party/ulib/safemath/do-update.sh!

ZX-3415 #comment [safemath] Add third_party/ulib/safemath
OSRB-156 #comment [safemath] Add third_party/ulib/safemath

Test: CQ
Change-Id: I243835521195f1a308e01b00c162b0152f85fb75

Separate ACPI code from the x86 board driver. In future, we can move
the ACPI namespace walk code and drivers into a separate library.

Test: Boot NUC, Pixelbook and make sure ACPI devices are initialized.
Change-Id: I0b8a5de90adeb70777d74947aeb64eff25666cf9

Add a mapping for the builtin C/C++ types and the common stdint types.

This is currently unused, it will be used in the future as a fallback
for type lookup when a type name is not found in the debugged program.

This currently handles one-word types only. In a future pass we'll
handle things like "short signed int".

Converts BaseType's constructor's "size" parameter to uint32_t which
matches the type of the size use by the Type class.

Change-Id: I2fd49c0a4f6967f68f6553d7564d02e492ff8432

This is a reland of 69ddd85b

Original change's description:
> [scenic] Remove Present2
>
> Test: present_view tile_view; present_view simplest_embedder
> SCN-1289 #done
>
> Change-Id: I3dee35a0c4f8f4d4b9d342d2f33eb2ce2abc716c

Change-Id: I5a9e7332b7c576421fe6a3e9079edee7d5c4f268

Moving to a state machine has some complexity benefits, and will set us
up to implement better tab completion.

Change-Id: Iae93b8f600b002fa84caf1bd2170cb674abdb2b3

It is no longer used anywhere, but give people a month to stop using it
just in case.

SCN-892 #comment
SCN-990 #comment

Change-Id: I40dc9aacbdc8b0fc0ed45595033ae612b0fdb8d2

To initialize the stateful partition, run:

  (host) $ cd $FUCHSIA_DIR
  (host) $ fx scp \
                garnet/bin/guest/pkg/biscotti_guest/images/x64/stateful.img \
                "[$(fx netaddr --fuchsia)]:/data/r/sys/fuchsia.com:biscotti:0#meta:biscotti.cmx"

PD-196 #done

Test: Initialized stateful.img with the above and booted the VM.
Change-Id: I0299dd70f3be5e010a6f9ef7e149376b5495638e

DX-387 #comment
CF-664 #comment

Change-Id: I80e0216f7bb57f7f5aa428f87aac096e6aa64d03

Fix a regression which broke Environmentservices when started on a
seperate thread.

DX-387 #comment

TEST=fx run-test component_cpp_tests

Change-Id: I4f490883cf40138696c0cc65cc8ca727fa6533dc

This changes adds implementation for some of the protocol functions.
At the moment this includes only ENABLE and DISABLE of power domains.
Modifying the audio/thermal and other drivers to use
these apis will be done as part of another changeset.

Test: Tested that I was able to write to the registers and read back the
correct values with
https://fuchsia-review.googlesource.com/c/fuchsia/+/264672 on touch
driver.

Change-Id: I2935ee3b08eeaf32010bddf1d128ba32a5503149

Smc call shows different replies for valid image ids. Even
though there is no valid image to be loaded yet, this shows we are
communicating with QSEE and getting meaningful errors.

Test: enabling TEST_SMC shows images supported and different auth errors

Change-Id: Icebb84913a911d91c900a2cb9a46044455669091

Test: compiles
Change-Id: I098ba7552c537ce08e6b8a8318b8897a3a42cabf

A quick conversion to make MmioConfig compatible with
ddk::MmioBuffer for unit tests. MmioViews will be used
in the future.

Change-Id: I618fb1b468f65e89253c994199ec37d03d3ed0c7

Changes bt-gap so that if an error occurs when adding or removing a
host, this does not terminate the whole program. Due to timing issues,
it is possible during add_adapter that a bt-host device has been removed
before we attempt to initialize it (open a channel, set connectable,
enable background scan etc.), which results in an error. We should log
this error, but as this is a situation which could occur in normal
behavior, we should not terminate the program.

Test: This behavior can be seen by adding and quickly removing an hci
device before bt-gap has finished initializing it. This is hard to do as
a human but can be implemented in a test. This was previously uncovered
by the set_active_host test in bt-integration-tests, but the current
behavior no longer produces this.

Change-Id: Ife27b14dc6b711c9a4b7c9e3cebc5aa21ea742e3

Change-Id: I10aa91918147c13e0975f8903c18c7fbe8c7c5ac

This is a reland of 0d4b27fe

Original change's description:
> [fdio] Remove lib/fdio/util.h
>
> All clients have moved to including the actual headers they need.
>
> Change-Id: I584d55510f15cc33217cc979482bafb41ca849fc

Change-Id: I176f4ca2d36df76a9e237f66c8d695feb65c2f61