Add widevine_cdm_version.h to gyp for android.

- EME API works on Chrome build.
- CanPlayType() is suppressed (returns "") by default.
- User can choose to override the CanPlayType() suppression with a flag
  "--override-encrypted-media-canplaytype".
- For Android "video/mp4" is supported, while "video/webm" isn't.

BUG=163552
TEST=Tested all scenarios listed above.
[email protected]

Review URL: https://codereview.chromium.org/23975003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@221548 0039d316-1c4b-4281-b951-d872f2087c98
diff --git a/chrome/browser/about_flags.cc b/chrome/browser/about_flags.cc
index 344c918..c0be7c3 100644
--- a/chrome/browser/about_flags.cc
+++ b/chrome/browser/about_flags.cc
@@ -752,7 +752,7 @@
     "override-encrypted-media-canplaytype",
     IDS_FLAGS_ENCRYPTED_MEDIA_CANPLAYTYPE_OVERRIDE_NAME,
     IDS_FLAGS_ENCRYPTED_MEDIA_CANPLAYTYPE_OVERRIDE_DESCRIPTION,
-    kOsMac | kOsWin,
+    kOsMac | kOsWin | kOsAndroid,
     SINGLE_VALUE_TYPE(switches::kOverrideEncryptedMediaCanPlayType)
   },
   {