| // Copyright 2014 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_PLUGIN_POWER_SAVER_HELPER_H_ |
| #define CONTENT_RENDERER_PEPPER_PLUGIN_POWER_SAVER_HELPER_H_ |
| |
| #include <set> |
| #include <vector> |
| |
| #include "base/callback.h" |
| #include "content/common/content_export.h" |
| #include "content/public/renderer/render_frame_observer.h" |
| #include "url/gurl.h" |
| |
| namespace blink { |
| struct WebPluginParams; |
| struct WebRect; |
| } |
| |
| namespace content { |
| |
| class CONTENT_EXPORT PluginPowerSaverHelper : public RenderFrameObserver { |
| public: |
| explicit PluginPowerSaverHelper(RenderFrame* render_frame); |
| ~PluginPowerSaverHelper() override; |
| |
| // See RenderFrame for documentation. |
| void RegisterPeripheralPlugin(const GURL& content_origin, |
| const base::Closure& unthrottle_callback); |
| |
| // Returns true if this plugin should have power saver enabled. |
| // |
| // Power Saver is enabled for plugin content that are cross-origin and |
| // heuristically determined to be not essential to the web page content. |
| // |
| // Plugin content is defined to be cross-origin when the plugin source's |
| // origin differs from the top level frame's origin. For example: |
| // - Cross-origin: a.com -> b.com/plugin.swf |
| // - Cross-origin: a.com -> b.com/iframe.html -> b.com/plugin.swf |
| // - Same-origin: a.com -> b.com/iframe-to-a.html -> a.com/plugin.swf |
| // |
| // |content_origin| is the origin of the plugin content. |
| // |
| // |width| and |height| are zoom and device scale independent logical pixels. |
| // |
| // |cross_origin_main_content| may be NULL. It is set to true if the |
| // plugin content is cross-origin but still the "main attraction" of the page. |
| bool ShouldThrottleContent(const GURL& content_origin, |
| const std::string& plugin_module_name, |
| int width, |
| int height, |
| bool* cross_origin_main_content) const; |
| |
| // Whitelists a |content_origin| so its content will never be throttled in |
| // this RenderFrame. Whitelist is cleared by top level navigation. |
| void WhitelistContentOrigin(const GURL& content_origin); |
| |
| private: |
| struct PeripheralPlugin { |
| PeripheralPlugin(const GURL& content_origin, |
| const base::Closure& unthrottle_callback); |
| ~PeripheralPlugin(); |
| |
| GURL content_origin; |
| base::Closure unthrottle_callback; |
| }; |
| |
| enum OverrideForTesting { |
| Normal, |
| Never, |
| IgnoreList, |
| Always |
| }; |
| |
| // RenderFrameObserver implementation. |
| void DidCommitProvisionalLoad(bool is_new_navigation, |
| bool is_same_page_navigation) override; |
| bool OnMessageReceived(const IPC::Message& message) override; |
| |
| void OnUpdatePluginContentOriginWhitelist( |
| const std::set<GURL>& origin_whitelist); |
| |
| OverrideForTesting override_for_testing_; |
| |
| // Local copy of the whitelist for the entire tab. |
| std::set<GURL> origin_whitelist_; |
| |
| // Set of peripheral plugins eligible to be unthrottled ex post facto. |
| std::vector<PeripheralPlugin> peripheral_plugins_; |
| |
| DISALLOW_COPY_AND_ASSIGN(PluginPowerSaverHelper); |
| }; |
| |
| } // namespace content |
| |
| #endif // CONTENT_RENDERER_PEPPER_PLUGIN_POWER_SAVER_HELPER_H_ |