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
+PluginInstanceThrottler* PluginInstanceThrottler::Create(
+    RenderFrame* frame,
+    const GURL& plugin_url,
+    PluginPowerSaverMode power_saver_mode) {
+  return new PluginInstanceThrottlerImpl(frame, plugin_url, power_saver_mode);
+}
+
+}  // namespace content