Populate canPlayType to renderer

chrome/browser/media/encrypted_media_message_filter_android.h

Index: chrome/browser/media/encrypted_media_message_filter_android.h
diff --git a/chrome/browser/media/encrypted_media_message_filter_android.h b/chrome/browser/media/encrypted_media_message_filter_android.h
new file mode 100644
index 0000000000000000000000000000000000000000..87dae69e209e3079bdcfa7efeab70f4d4bde3013
--- /dev/null
+++ b/chrome/browser/media/encrypted_media_message_filter_android.h
@@ -0,0 +1,39 @@
+// 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.
+
+#ifndef CHROME_BROWSER_MEDIA_ENCRYPTED_MEDIA_MESSAGE_FILTER_ANDROID_H_
+#define CHROME_BROWSER_MEDIA_ENCRYPTED_MEDIA_MESSAGE_FILTER_ANDROID_H_
+
+#include <vector>
+
+#include "base/basictypes.h"
+#include "content/public/browser/browser_message_filter.h"
+
+struct SupportedKeySystem;
+
+namespace chrome {
+
+// Message filter for EME on android. It is responsible for getting the
+// canPlayType information and pass it back to renderer.

[ddorwin, 2013/09/16 17:58:10]

Try to avoid canPlayType references, since that is the old name. Also, the rest
of the file uses "SupportedKeySystems".

[qinmin, 2013/09/17 19:21:06]

Done.

+class EncryptedMediaMessageFilterAndroid
+    : public content::BrowserMessageFilter {
+ public:
+  EncryptedMediaMessageFilterAndroid();
+
+ private:
+  virtual ~EncryptedMediaMessageFilterAndroid();
+
+  // BrowserMessageFilter implementation.
+  virtual bool OnMessageReceived(const IPC::Message& message,
+                                 bool* message_was_ok) OVERRIDE;
+
+  // Retrieve the supported key system.

[ddorwin, 2013/09/16 17:58:10]

system_s_

[qinmin, 2013/09/17 19:21:06]

Done.

+  void OnGetSupportedKeySystems(std::vector<SupportedKeySystem>* result);
+
+  DISALLOW_COPY_AND_ASSIGN(EncryptedMediaMessageFilterAndroid);
+};
+
+}  // namespace chrome
+
+#endif  // CHROME_BROWSER_MEDIA_ENCRYPTED_MEDIA_MESSAGE_FILTER_ANDROID_H_