| Index: build/common.gypi | 
| diff --git a/build/common.gypi b/build/common.gypi | 
| index 3fd1c770b6b7ad08d5c4f8574fcd3b71c2d7aff0..6a8ef84a5aa09474692020375fe0f1191dc9d4e0 100644 | 
| --- a/build/common.gypi | 
| +++ b/build/common.gypi | 
| @@ -1580,6 +1580,9 @@ | 
| ['use_concatenated_impulse_responses==1', { | 
| 'grit_defines': ['-D', 'use_concatenated_impulse_responses'], | 
| }], | 
| +      ['enable_webrtc==1', { | 
| +        'grit_defines': ['-D', 'enable_webrtc'], | 
| +      }], | 
| ['clang_use_chrome_plugins==1 and OS!="win"', { | 
| 'clang_chrome_plugins_flags': [ | 
| '<!@(<(DEPTH)/tools/clang/scripts/plugin_flags.sh)' | 
|  |