Plugin Power Saver: Make PepperPluginInstanceThrottler interface public.

content/renderer/pepper/pepper_plugin_instance_metrics.h

+// Copyright 2015 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_RENDERER_PEPPER_PEPPER_PLUGIN_INSTANCE_METRICS_H_
+#define CONTENT_RENDERER_PEPPER_PEPPER_PLUGIN_INSTANCE_METRICS_H_
+
+#include <string>
+#include <vector>
+
+namespace ppapi {
+struct Preferences;
+}
+
+namespace content {
+
+// Record size metrics for all Flash instances.
+void RecordFlashSizeMetric(int width, int height);
+
+// Records size metrics for Flash instances that are clicked.
+void RecordFlashClickSizeMetric(int width, int height);
+
+void SetGPUHistogram(const ppapi::Preferences& prefs,
+                     const std::vector<std::string>& arg_names,
+                     const std::vector<std::string>& arg_values);
+
+}  // namespace content
+
+#endif  // CONTENT_RENDERER_PEPPER_PEPPER_PLUGIN_INSTANCE_METRICS_H_