gpu: Some cleanups.

content/public/browser/gpu_data_manager.h

 // Copyright (c) 2012 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 CONTENT_PUBLIC_BROWSER_GPU_DATA_MANAGER_H_
 #define CONTENT_PUBLIC_BROWSER_GPU_DATA_MANAGER_H_
 
 #include <list>
 #include <string>
 
 #include "base/callback_forward.h"
 #include "base/process/process.h"
 #include "content/common/content_export.h"
 
 class GURL;
 
 namespace gpu {
 struct GPUInfo;
 }
 
 namespace content {
 
 class GpuDataManagerObserver;
 
 // This class is fully thread-safe.
 class GpuDataManager {
  public:
-  typedef base::Callback<void(const std::list<base::ProcessHandle>&)>
-      GetGpuProcessHandlesCallback;
-
   // Getter for the singleton.
   CONTENT_EXPORT static GpuDataManager* GetInstance();
 
   // This is only called by extensions testing.
   virtual void BlacklistWebGLForTesting() = 0;
 
   virtual bool IsFeatureBlacklisted(int feature) const = 0;
   virtual bool IsFeatureEnabled(int feature) const = 0;
   virtual bool IsWebGLEnabled() const = 0;
 
   virtual gpu::GPUInfo GetGPUInfo() const = 0;
 
-  // Retrieves a list of process handles for all gpu processes.
-  virtual void GetGpuProcessHandles(
-      const GetGpuProcessHandlesCallback& callback) const = 0;
-
   // This indicator might change because we could collect more GPU info or
   // because the GPU blacklist could be updated.
   // If this returns false, any further GPU access, including launching GPU
   // process, establish GPU channel, and GPU info collection, should be
   // blocked.
   // Can be called on any thread.
   // If |reason| is not nullptr and GPU access is blocked, upon return, |reason|
   // contains a description of the reason why GPU access is blocked.
   virtual bool GpuAccessAllowed(std::string* reason) const = 0;
 
@@ skipping 51 matching lines @@
   // the backlists decision and applying commandline switches.
   virtual void SetGpuInfo(const gpu::GPUInfo& gpu_info) = 0;
 
  protected:
   virtual ~GpuDataManager() {}
 };
 
 };  // namespace content
 
 #endif  // CONTENT_PUBLIC_BROWSER_GPU_DATA_MANAGER_H_