Remove unused include in sequenced_worker_pool.h

cc/blimp/remote_compositor_bridge.h

 // Copyright 2016 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 CC_BLIMP_REMOTE_COMPOSITOR_BRIDGE_H_
 #define CC_BLIMP_REMOTE_COMPOSITOR_BRIDGE_H_
 
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
+#include "base/single_thread_task_runner.h"
 #include "cc/base/cc_export.h"
 
-namespace base {
-class SingleThreadTaskRunner;
-}  // namespace base
+namespace cc {
 
-namespace cc {
 class CompositorProtoState;
 class RemoteCompositorBridgeClient;
 
 // The RemoteCompositorBridge is the remote LTH's communication bridge to the
 // compositor on the client that consumes the CompositorProtoState updates and
 // performs the actual compositing work. It is responsible for scheduling
 // when a state update should be sent to the client and providing back
 // mutations made to the state on the client.
 class CC_EXPORT RemoteCompositorBridge {
  public:
@@ skipping 18 matching lines @@
  protected:
   // The task runner for the compositor's main thread. The
   // RemoteCompositorBridgeClient must be called on this task runner.
   scoped_refptr<base::SingleThreadTaskRunner> compositor_main_task_runner_;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(RemoteCompositorBridge);
 };
 
 }  // namespace cc
+
 #endif  // CC_BLIMP_REMOTE_COMPOSITOR_BRIDGE_H_