Replace the use of CLD_DATA_FROM* and CLD-related ifdefs with runtime checks.

This, along with other changes described in crbug/367239, allows refactoring
of the build logic to allow per-target customization of the CLD data source.
This, in turn, allows chrome_shell to be built with statically-linked CLD even
if other things (such as the full browser) are not.

BUG=367239
TBR=toyoshim@chromium.org

Review URL: https://codereview.chromium.org/424123003

git-svn-id: http://src.chromium.org/svn/trunk/src/build@286487 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

common.gypi

@@ -2764,15 +2764,6 @@
         # chrome://translate-internals
         'defines': ['CLD2_DATA_SOURCE=<(cld2_data_source)'],
       }],
-      ['cld_version==2 and cld2_data_source=="static"', {
-        'defines': ['CLD_DATA_FROM_STATIC'],
-      }],
-      ['cld_version==2 and cld2_data_source=="standalone"', {
-        'defines': ['CLD_DATA_FROM_STANDALONE'],
-      }],
-      ['cld_version==2 and cld2_data_source=="component"', {
-        'defines': ['CLD_DATA_FROM_COMPONENT'],
-      }],
       ['enable_printing==1', {
         'defines': ['ENABLE_FULL_PRINTING=1', 'ENABLE_PRINTING=1'],
       }],