content/renderer/pepper/plugin_power_saver_helper.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 CONTENT_RENDERER_PEPPER_PLUGIN_POWER_SAVER_HELPER_H_
   6 #define CONTENT_RENDERER_PEPPER_PLUGIN_POWER_SAVER_HELPER_H_
   7
   8 #include <set>
   9 #include <vector>
  10
  11 #include "base/callback.h"
  12 #include "content/common/content_export.h"
  13 #include "content/public/renderer/render_frame_observer.h"
  14 #include "url/gurl.h"
  15
  16 namespace blink {
  17 struct WebPluginParams;
  18 }
  19
  20 namespace content {
  21
  22 class CONTENT_EXPORT PluginPowerSaverHelper : public RenderFrameObserver {
  23  public:
  24   explicit PluginPowerSaverHelper(RenderFrame* render_frame);
  25   ~PluginPowerSaverHelper() override;
  26
  27   // See RenderFrame for documentation.
  28   void RegisterPeripheralPlugin(const GURL& content_origin,
  29                                 const base::Closure& unthrottle_callback);
  30   bool ShouldThrottleContent(const blink::WebPluginParams& params,
  31                              const GURL& plugin_frame_url,
  32                              GURL* poster_image,
  33                              bool* cross_origin_main_content) const;
  34   void WhitelistContentOrigin(const GURL& content_origin);
  35
  36  private:
  37   struct PeripheralPlugin {
  38     PeripheralPlugin(const GURL& content_origin,
  39                      const base::Closure& unthrottle_callback);
  40     ~PeripheralPlugin();
  41
  42     GURL content_origin;
  43     base::Closure unthrottle_callback;
  44   };
  45
  46   // RenderFrameObserver implementation.
  47   void DidCommitProvisionalLoad(bool is_new_navigation) override;
  48   bool OnMessageReceived(const IPC::Message& message) override;
  49
  50   void OnUpdatePluginContentOriginWhitelist(
  51       const std::set<GURL>& origin_whitelist);
  52
  53   // Local copy of the whitelist for the entire tab.
  54   std::set<GURL> origin_whitelist_;
  55
  56   // Set of peripheral plugins eligible to be unthrottled ex post facto.
  57   std::vector<PeripheralPlugin> peripheral_plugins_;
  58
  59   DISALLOW_COPY_AND_ASSIGN(PluginPowerSaverHelper);
  60 };
  61
  62 }  // namespace content
  63
  64 #endif  // CONTENT_RENDERER_PEPPER_PLUGIN_POWER_SAVER_HELPER_H_