dl_open and friends are only used by ICU plugins that we don't use.
Nacl-related targets (with newlib) fail because dlfcn.h is missing.

Setting U_ENABLE_DYLOAD to 0, we don't have to worry about dlfcn.h any more (it's not included)

BUG=132145
TEST=After running build/gyp_chromium, build 'base_i18n_nacl' target. It should succeed without complaining about dlfcn.h.
R=sergeyu@chromium.org

Review URL: https://codereview.chromium.org/263763002

git-svn-id: http://src.chromium.org/svn/trunk/deps/third_party/icu52@267357 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Port the icu46 gyp file change to icu52.
See https://codereview.chromium.org/212593002

BUG=346626,132145
R=torne@chromium.org
TBR=torne@chromium.org

Review URL: https://codereview.chromium.org/257303002

git-svn-id: http://src.chromium.org/svn/trunk/deps/third_party/icu52@267148 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Add a shell script to trim the ICU data further : trim_data.sh along with
locale list files.  The script does the following:

1. Remove the display names of languages NOT listed in Chrome's Accept-Language
   list. (800kB)
2. Minimize the locale data for locales listed in the A-L list that are
   not a UI locale in Chrome. For those locales, exemplar characters,
   the display name in the native language and layout direction are included.
   (640kB)
3. Filter the region data to drop numeric region display names other than 419
   (Latin-America). (50kB)
4. Filter the currency data (display name and plurals) for historic currencies.
   (200kB)

This CL also checks in icudtl.dat (source/data/in) and
icudt_dat.S (mac and linux). Note that I dropped '52' (the version number)
in the assembly source file name and icu.gyp was adjusted accordingly.

With all these changes, icudtl.dat is ~ 800kB larger than that in ICU 4.6.
The 7z compression (as used by the installer) makes the size difference
go down to ~ 130kB.

BUG=132145
TEST=The icudtl.dat (uncompressed) is about 10.7MB instead of 12.4MB without this CL.
R=mark@chromium.org

Review URL: https://codereview.chromium.org/239543018

git-svn-id: http://src.chromium.org/svn/trunk/deps/third_party/icu52@264811 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Update icu.gyp and related files to list C/C++ source files and header files.

Besides, HAVE_DLOPEN is set to 0 explicitly in icu.gyp. It's 0 by default
in ICU 4.6.1 but is 1 by default in ICU 52.1, but we don't need it. (it's only
necessary for ICU plugins that Chromium does not use).

I also applied https://codereview.chromium.org/218153002/ (Nico's CL to
simplify icu.gyp).

BUG=132145
TEST=None
R=mark@chromium.org, thakis@chromium.org

Review URL: https://codereview.chromium.org/212623010

git-svn-id: http://src.chromium.org/svn/trunk/deps/third_party/icu52@260941 4ff67af0-8c30-449e-8e8b-ad334ec8d88c