components/metrics/gpu/gpu_metrics_provider.h

   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 COMPONENTS_METRICS_GPU_GPU_METRICS_PROVIDER_H_
   6 #define COMPONENTS_METRICS_GPU_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 namespace metrics {
  13
  14 // GPUMetricsProvider provides GPU-related metrics.
  15 class GPUMetricsProvider : public MetricsProvider {
  16  public:
  17   GPUMetricsProvider();
  18   ~GPUMetricsProvider() override;
  19
  20   // MetricsProvider:
  21   void ProvideSystemProfileMetrics(
  22       SystemProfileProto* system_profile_proto) override;
  23
  24  protected:
  25   // Exposed for the sake of mocking in test code.
  26
  27   // Returns the screen size for the primary monitor.
  28   virtual gfx::Size GetScreenSize() const;
  29
  30   // Returns the device scale factor for the primary monitor.
  31   virtual float GetScreenDeviceScaleFactor() const;
  32
  33   // Returns the number of monitors the user is using.
  34   virtual int GetScreenCount() const;
  35
  36  private:
  37   DISALLOW_COPY_AND_ASSIGN(GPUMetricsProvider);
  38 };
  39
  40 }  // namespace metrics
  41
  42 #endif  // COMPONENTS_METRICS_GPU_GPU_METRICS_PROVIDER_H_