Fix ENABLE_INTENTS to ENABLE_WEB_INTENTS that slipped through the cracks.

R=jhawkins@chromium.org
BUG=None
TEST=None


Review URL: http://codereview.chromium.org/8083026

git-svn-id: http://src.chromium.org/svn/trunk/src/build@103972 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

common.gypi

@@ -1071,7 +1071,7 @@
       }],
       ['enable_web_intents==1', {
         'defines': [
-          'ENABLE_INTENTS=1',
+          'ENABLE_WEB_INTENTS=1',
         ],
       }],
     ],  # conditions for 'target_defaults'