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| 1 // Copyright 2015 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 COMPONENTS_PAGE_LOAD_METRICS_RENDERER_PAGE_LOAD_METRICS_RENDER_FRAME_OBS
ERVER_H_ |
| 6 #define COMPONENTS_PAGE_LOAD_METRICS_RENDERER_PAGE_LOAD_METRICS_RENDER_FRAME_OBS
ERVER_H_ |
| 7 |
| 8 #include "base/macros.h" |
| 9 #include "base/memory/scoped_ptr.h" |
| 10 #include "components/page_load_metrics/common/page_load_timing.h" |
| 11 #include "content/public/renderer/render_frame_observer.h" |
| 12 |
| 13 namespace base { |
| 14 class Timer; |
| 15 } // namespace base |
| 16 |
| 17 namespace page_load_metrics { |
| 18 |
| 19 class PageTimingMetricsSender; |
| 20 |
| 21 // MetricsRenderFrameObserver observes RenderFrame notifications, and |
| 22 // sends page load timing information to the browser process over IPC. |
| 23 class MetricsRenderFrameObserver : public content::RenderFrameObserver { |
| 24 public: |
| 25 explicit MetricsRenderFrameObserver(content::RenderFrame* render_frame); |
| 26 ~MetricsRenderFrameObserver() override; |
| 27 |
| 28 // RenderFrameObserver implementation |
| 29 void DidChangePerformanceTiming() override; |
| 30 void DidCommitProvisionalLoad(bool is_new_navigation, |
| 31 bool is_same_page_navigation) override; |
| 32 |
| 33 private: |
| 34 // Will be null when we're not actively sending metrics. |
| 35 scoped_ptr<PageTimingMetricsSender> page_timing_metrics_sender_; |
| 36 |
| 37 void SendMetrics(); |
| 38 virtual bool ShouldSendMetrics() const; |
| 39 virtual PageLoadTiming GetTiming() const; |
| 40 virtual scoped_ptr<base::Timer> CreateTimer() const; |
| 41 |
| 42 DISALLOW_COPY_AND_ASSIGN(MetricsRenderFrameObserver); |
| 43 }; |
| 44 |
| 45 } // namespace page_load_metrics |
| 46 |
| 47 #endif // COMPONENTS_PAGE_LOAD_METRICS_RENDERER_PAGE_LOAD_METRICS_RENDER_FRAME_
OBSERVER_H_ |
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