Componentize EncryptedMediaMessageFilter and rename it CdmMessageFilter.

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
deleted file mode 100644
index 9d426ae59a78faff34dc90cbd8bfbaccec5ff2e5..0000000000000000000000000000000000000000
--- a/chrome/browser/media/encrypted_media_message_filter_android.h
+++ /dev/null
@@ -1,43 +0,0 @@
-// 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 "base/basictypes.h"
-#include "content/public/browser/browser_message_filter.h"
-
-struct SupportedKeySystemRequest;
-struct SupportedKeySystemResponse;
-
-namespace chrome {
-
-// Message filter for EME on android. It is responsible for getting the
-// SupportedKeySystems information and passing it back to renderer.
-class EncryptedMediaMessageFilterAndroid
-    : public content::BrowserMessageFilter {
- public:
-  EncryptedMediaMessageFilterAndroid();
-
- private:
-  virtual ~EncryptedMediaMessageFilterAndroid();
-
-  // BrowserMessageFilter implementation.
-  virtual bool OnMessageReceived(const IPC::Message& message,
-                                 bool* message_was_ok) OVERRIDE;
-  virtual void OverrideThreadForMessage(
-      const IPC::Message& message,
-      content::BrowserThread::ID* thread) OVERRIDE;
-
-  // Retrieve the supported key systems.
-  void OnGetSupportedKeySystems(
-      const SupportedKeySystemRequest& request,
-      SupportedKeySystemResponse* response);
-
-  DISALLOW_COPY_AND_ASSIGN(EncryptedMediaMessageFilterAndroid);
-};
-
-}  // namespace chrome
-
-#endif  // CHROME_BROWSER_MEDIA_ENCRYPTED_MEDIA_MESSAGE_FILTER_ANDROID_H_