Populate canPlayType to renderer

chrome/common/encrypted_media_messages_android.h

+// Copyright 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.
+
+// IPC messages for EME on android.
+// Multiply-included message file, hence no include guard.
+
+#include <string>
+#include <vector>
+
+#include "chrome/common/widevine_cdm_constants.h"

[ddorwin, 2013/09/17 22:29:08]

As I mentioned earlier, we should avoid having specific key system information
in any API files.

[qinmin, 2013/09/18 00:45:44]

Done.

+#include "ipc/ipc_message_macros.h"
+
+#define IPC_MESSAGE_START EncryptedMediaMsgStart
+
+IPC_ENUM_TRAITS(SupportedCodecs)
+
+IPC_STRUCT_BEGIN(SupportedKeySystemRequest)
+  // Key system UUID.
+  IPC_STRUCT_MEMBER(std::vector<uint8>, uuid)
+
+  // Bitmask of supported codecs.
+  IPC_STRUCT_MEMBER(SupportedCodecs, supported_codecs)
+IPC_STRUCT_END()
+
+IPC_STRUCT_BEGIN(SupportedKeySystemResponse)

[ddorwin, 2013/09/17 22:29:08]

Do the members of this struct get initialized anywhere?

[qinmin, 2013/09/18 00:45:44]

separated the struct definition from IPC

On 2013/09/17 22:29:08, ddorwin wrote:

+  // Key system UUID.
+  IPC_STRUCT_MEMBER(std::vector<uint8>, uuid)
+
+  // Bitmask of supported compositing codecs.
+  IPC_STRUCT_MEMBER(SupportedCodecs, compositing_codecs)
+
+  // Bitmask of supported non-compositing codecs.
+  IPC_STRUCT_MEMBER(SupportedCodecs, non_compositing_codecs)
+IPC_STRUCT_END()
+
+// Messages sent from the renderer to the browser.
+
+// Synchronously get a list of supported EME key systems.
+IPC_SYNC_MESSAGE_CONTROL1_1(
+    ChromeViewHostMsg_GetSupportedKeySystems,
+    SupportedKeySystemRequest /*  key system information request*/,

[ddorwin, 2013/09/17 22:29:08]

extra space before and missing after

[qinmin, 2013/09/18 00:45:44]

Done.

+    SupportedKeySystemResponse /* key system information response */)