| // Copyright 2013 The Chromium Authors |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef CONTENT_RENDERER_STATS_COLLECTION_CONTROLLER_H_ |
| #define CONTENT_RENDERER_STATS_COLLECTION_CONTROLLER_H_ |
| |
| #include "gin/wrappable.h" |
| |
| namespace blink { |
| class WebLocalFrame; |
| } |
| |
| namespace content { |
| |
| // This class is exposed in JS as window.statsCollectionController and provides |
| // functionality to read out statistics from the browser. |
| // Its use must be enabled specifically via the |
| // --enable-stats-collection-bindings command line flag. |
| class StatsCollectionController |
| : public gin::Wrappable<StatsCollectionController> { |
| public: |
| static gin::WrapperInfo kWrapperInfo; |
| |
| StatsCollectionController(const StatsCollectionController&) = delete; |
| StatsCollectionController& operator=(const StatsCollectionController&) = |
| delete; |
| |
| static void Install(blink::WebLocalFrame* frame); |
| |
| private: |
| StatsCollectionController(); |
| ~StatsCollectionController() override; |
| |
| // gin::WrappableBase |
| gin::ObjectTemplateBuilder GetObjectTemplateBuilder( |
| v8::Isolate* isolate) override; |
| |
| // Retrieves a histogram and returns a JSON representation of it. |
| std::string GetHistogram(const std::string& histogram_name); |
| |
| // Retrieves a histogram from the browser process and returns a JSON |
| // representation of it. |
| std::string GetBrowserHistogram(const std::string& histogram_name); |
| |
| // Returns JSON representation of tab timing information for the current tab. |
| std::string GetTabLoadTiming(); |
| }; |
| |
| } // namespace content |
| |
| #endif // CONTENT_RENDERER_STATS_COLLECTION_CONTROLLER_H_ |