Plugin Power Saver: Collect size histogram on Flash Plugins users click.

content/renderer/pepper/pepper_plugin_instance_impl.h

 // Copyright (c) 2012 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_IMPL_H_
 #define CONTENT_RENDERER_PEPPER_PEPPER_PLUGIN_INSTANCE_IMPL_H_
 
 #include <list>
 #include <set>
 #include <string>
@@ skipping 695 matching lines @@
   blink::WebPluginContainer* container_;
   scoped_refptr<cc::Layer> compositor_layer_;
   scoped_refptr<cc::TextureLayer> texture_layer_;
   scoped_ptr<blink::WebLayer> web_layer_;
   bool layer_bound_to_fullscreen_;
   bool layer_is_hardware_;
 
   // Plugin URL.
   GURL plugin_url_;
 
+  // Set to true first time plugin is clicked. Used to collect metrics.
+  bool has_been_clicked_;
+
   // Indicates whether this plugin may be throttled to reduce power consumption.
   // |power_saver_enabled_| implies |is_peripheral_content_|.
   bool power_saver_enabled_;
 
   // Indicates whether this plugin was found to be peripheral content.
   // This is separately tracked from |power_saver_enabled_| to collect UMAs.
   // Always true if |power_saver_enabled_| is true.
   bool is_peripheral_content_;
 
   // Indicates if the plugin is currently throttled.
@@ skipping 203 matching lines @@
   // view change events.
   base::WeakPtrFactory<PepperPluginInstanceImpl> view_change_weak_ptr_factory_;
   base::WeakPtrFactory<PepperPluginInstanceImpl> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(PepperPluginInstanceImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_PEPPER_PEPPER_PLUGIN_INSTANCE_IMPL_H_