Prepare to enable icu_use_data_file_flag on CrOS

1. Enabling icu_use_data_file_flag led to a crash because GetStringUTF8 (that relies on ICU to determine whether the current UI language is RTL) is called before InitializeICU is called. Instead of using GetStringUTF8, get the string directly from the resource bundle because there's no need to adjust the string for the RTL locale in this particular case. 

2. update chromite to a revision that copies icudtl.dat when icu_use_data_file_flag is on. 

The switch (icu_use_data_file) will be flipped in a follow-up CL (either in build/common.gypi or chromeos-chrome ebuild file or both as necessary). 

BUG=72633
TEST=cros_{amd,x86,amd64} pass all the tests. No actual change with this CL.


Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=248325

Review URL: https://codereview.chromium.org/135963010

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@248954 0039d316-1c4b-4281-b951-d872f2087c98
Update .DEPS.git

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@248955 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 248955