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.
R=ddorwin@chromium.org

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

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@221548 0039d316-1c4b-4281-b951-d872f2087c98

chrome/browser/about_flags.cc

@@ -752,7 +752,7 @@ const Experiment kExperiments[] = {
     "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)
   },
   {

content/renderer/media/crypto/key_systems_info.cc

@@ -77,8 +77,10 @@ static void RegisterWidevine() {
       kWidevineUuid,
 #endif  // defined(ENABLE_PEPPER_CDMS)
       "com.widevine");
+#if !defined(OS_ANDROID)
   AddSupportedType(kWidevineKeySystem, "video/webm", "vorbis,vp8,vp8.0");
   AddSupportedType(kWidevineKeySystem, "audio/webm", "vorbis");
+#endif  // !defined(OS_ANDROID)
 #if defined(USE_PROPRIETARY_CODECS) && \
     defined(WIDEVINE_CDM_CENC_SUPPORT_AVAILABLE)
   AddSupportedType(kWidevineKeySystem, "video/mp4", kWidevineVideoMp4Codecs);

third_party/widevine/cdm/android/widevine_cdm_version.h

+// Copyright (c) 2013 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef WIDEVINE_CDM_VERSION_H_
+#define WIDEVINE_CDM_VERSION_H_
+
+#include "third_party/widevine/cdm/widevine_cdm_common.h"
+
+// Indicates that the Widevine CDM is available.
+#define WIDEVINE_CDM_AVAILABLE
+
+// TODO(ddorwin): Remove when we have CDM availability detection
+// (http://crbug.com/224793).
+#define DISABLE_WIDEVINE_CDM_CANPLAYTYPE
+
+// Indicates that ISO BMFF CENC support is available in the Widevine CDM.
+// Must be enabled if any of the codecs below are enabled.
+#define WIDEVINE_CDM_CENC_SUPPORT_AVAILABLE
+// Indicates that AVC1 decoding is available for ISO BMFF CENC.
+#define WIDEVINE_CDM_AVC1_SUPPORT_AVAILABLE
+// Indicates that AAC decoding is available for ISO BMFF CENC.
+#define WIDEVINE_CDM_AAC_SUPPORT_AVAILABLE
+
+#endif  // WIDEVINE_CDM_VERSION_H_

third_party/widevine/cdm/widevine_cdm.gyp

@@ -38,6 +38,11 @@
               'binaries/win/<(target_arch)/widevinecdm.dll.lib',
             ],
           }],
+          # TODO(xhwang): Enable this for non-Chrome build if necessary.
+          [ 'OS == "android"', {
+            'widevine_cdm_version_h_file%':
+            'android/widevine_cdm_version.h',
+          }],
         ],
       }],
     ],