Fix "unused variable" warnings.

chrome/browser/media/android/remote/remote_media_player_bridge.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.
 
 #ifndef CHROME_BROWSER_MEDIA_ANDROID_REMOTE_REMOTE_MEDIA_PLAYER_BRIDGE_H_
 #define CHROME_BROWSER_MEDIA_ANDROID_REMOTE_REMOTE_MEDIA_PLAYER_BRIDGE_H_
 
 #include <jni.h>
 #include <vector>
 
 #include "base/macros.h"
 #include "base/time/time.h"
 #include "base/timer/timer.h"
 #include "media/base/android/media_player_bridge.h"
 
 class SkBitmap;
 
 // This is the version of MediaPlayerBridge that handles the remote media
 // playback.
 
 namespace remote_media {
 
 class RemoteMediaPlayerManager;
 
 class RemoteMediaPlayerBridge : public media::MediaPlayerAndroid {
  public:
   RemoteMediaPlayerBridge(int player_id,
                           const std::string& user_agent,
-                          bool hide_url_log,
                           RemoteMediaPlayerManager* manager);
   ~RemoteMediaPlayerBridge() override;
 
   static bool RegisterRemoteMediaPlayerBridge(JNIEnv* env);
 
   // Initialize this object.
   virtual void Initialize();
 
   // MediaPlayerAndroid implementation.
   void SetVideoSurface(gfx::ScopedJavaSurface surface) override;
@@ skipping 80 matching lines @@
   // are retrieved.
   void OnCookiesRetrieved(const std::string& cookies);
 
   media::MediaPlayerAndroid* GetLocalPlayer();
 
   int width_;
   int height_;
   base::RepeatingTimer time_update_timer_;
   base::TimeDelta duration_;
 
-  // Hide url log from media player.
-  bool hide_url_log_;
-
   // Url for playback.
   GURL url_;
 
   // First party url for cookies.
   GURL first_party_for_cookies_;
 
   // Cookies for |url_|.
   std::string cookies_;
 
   // User agent string to be used for media player.
   const std::string user_agent_;
 
   base::android::ScopedJavaGlobalRef<jobject> java_bridge_;
   std::unique_ptr<std::string> casting_message_;
 
   // NOTE: Weak pointers must be invalidated before all other member variables.
   base::WeakPtrFactory<RemoteMediaPlayerBridge> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(RemoteMediaPlayerBridge);
 };
 
 } // namespace remote_media
 
 #endif  // CHROME_BROWSER_MEDIA_ANDROID_REMOTE_REMOTE_MEDIA_PLAYER_BRIDGE_H_