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      1 // Copyright 2014 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 #ifndef CHROME_BROWSER_METRICS_GPU_METRICS_PROVIDER_H_
      6 #define CHROME_BROWSER_METRICS_GPU_METRICS_PROVIDER_H_
      7 
      8 #include "base/basictypes.h"
      9 #include "components/metrics/metrics_provider.h"
     10 #include "ui/gfx/size.h"
     11 
     12 // GPUMetricsProvider provides GPU-related metrics.
     13 class GPUMetricsProvider : public metrics::MetricsProvider {
     14  public:
     15   GPUMetricsProvider();
     16   virtual ~GPUMetricsProvider();
     17 
     18   // metrics::MetricsProvider:
     19   virtual void ProvideSystemProfileMetrics(
     20       metrics::SystemProfileProto* system_profile_proto) OVERRIDE;
     21 
     22  protected:
     23   // Exposed for the sake of mocking in test code.
     24 
     25   // Returns the screen size for the primary monitor.
     26   virtual gfx::Size GetScreenSize() const;
     27 
     28   // Returns the device scale factor for the primary monitor.
     29   virtual float GetScreenDeviceScaleFactor() const;
     30 
     31   // Returns the number of monitors the user is using.
     32   virtual int GetScreenCount() const;
     33 
     34  private:
     35   DISALLOW_COPY_AND_ASSIGN(GPUMetricsProvider);
     36 };
     37 
     38 #endif  // CHROME_BROWSER_METRICS_GPU_METRICS_PROVIDER_H_
     39