Enable the embedded L1/EME support in WebView.

build/common.gypi

Index: build/common.gypi
diff --git a/build/common.gypi b/build/common.gypi
index d005e6e897f3888b292de0925941a3f5f4d425be..d6626d2cd76ce808d17d31730b2d3caaa6c39825 100644
--- a/build/common.gypi
+++ b/build/common.gypi
@@ -2481,6 +2481,9 @@
       ['enable_ipc_fuzzer==1', {
         'defines': ['ENABLE_IPC_FUZZER=1'],
       }],
+      ['android_webview_build==1', {
+        'defines': ['VIDEO_HOLE=1'],

[boliu, 2014/01/24 21:56:32]

This has implications for webview due to all the new code we are going to
compile in. Can't just land this blindly. Can you upload a no-op CL touching
each instance of VIDEO_HOLE in the code base, so I can review them? (Say add a
blank line after each VIDEO_HOLE instance)

[ycheo (away), 2014/01/28 13:08:53]

I'll send you another CL.

+      }],
     ],  # conditions for 'target_defaults'
     'target_conditions': [
       ['enable_wexit_time_destructors==1', {