Generate the lists of localization files instead of hardcoding them.

This CL modifies remoting/tools/localize.py script such that it can:
  - be invoked via 'pymod_do_main' filter.
  - generate a separate output file for each locale/language.
  - produce the list of output files for given set of parameters.

remoting.gyp now generates the lists of .pak and message.json files invoking the script via 'pymod_do_main' filter. 'pymod_do_main' is necessary to pass paths unaltered between GYP and python.

The script was also renamed to remoting/tools/build/remoting_localize.py to avoid potential name clashes since the script is globally visible now.

TBR is for the DEPS changes only.

TBR=cpu@chromium.org
BUG=155204

Review URL: https://chromiumcodereview.appspot.com/18868009

git-svn-id: http://src.chromium.org/svn/trunk/src/build@211227 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

gyp_chromium

@@ -25,6 +25,7 @@ sys.path.insert(1, os.path.join(chrome_src, 'tools', 'generate_shim_headers'))
 sys.path.insert(1, os.path.join(chrome_src, 'tools', 'grit'))
 sys.path.insert(1, os.path.join(chrome_src, 'chrome', 'tools', 'build'))
 sys.path.insert(1, os.path.join(chrome_src, 'native_client', 'build'))
+sys.path.insert(1, os.path.join(chrome_src, 'remoting', 'tools', 'build'))
 sys.path.insert(1, os.path.join(chrome_src, 'third_party', 'WebKit',
     'Source', 'core', 'scripts'))
 # TODO(adamk): Remove this line once core.gyp is no longer a directory