Plugin Power Saver: Make PepperPluginInstanceThrottler interface public.

content/public/renderer/plugin_instance_throttler.cc

+// 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.
+
+#include "content/public/renderer/plugin_instance_throttler.h"
+
+#include "content/renderer/pepper/plugin_instance_throttler_impl.h"
+
+namespace content {
+
+// static
+scoped_ptr<PluginInstanceThrottler> PluginInstanceThrottler::Get(
+    RenderFrame* frame,
+    const GURL& plugin_url,
+    PluginPowerSaverMode power_saver_mode) {
+  if (power_saver_mode == PluginPowerSaverMode::POWER_SAVER_MODE_ESSENTIAL)
+    return nullptr;
+
+  bool power_saver_enabled =
+      power_saver_mode ==
+      PluginPowerSaverMode::POWER_SAVER_MODE_PERIPHERAL_THROTTLED;
+  return make_scoped_ptr(
+      new PluginInstanceThrottlerImpl(frame, plugin_url, power_saver_enabled));
+}
+
+}  // namespace content