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1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef CHROME_RENDERER_PRERENDER_PRERENDER_HELPER_H_ | 5 #ifndef CHROME_RENDERER_PRERENDER_PRERENDER_HELPER_H_ |
6 #define CHROME_RENDERER_PRERENDER_PRERENDER_HELPER_H_ | 6 #define CHROME_RENDERER_PRERENDER_PRERENDER_HELPER_H_ |
7 | 7 |
8 #include "base/compiler_specific.h" | 8 #include "base/compiler_specific.h" |
9 #include "base/macros.h" | 9 #include "base/macros.h" |
10 #include "base/time/time.h" | 10 #include "base/time/time.h" |
| 11 #include "chrome/common/prerender_types.h" |
11 #include "content/public/renderer/render_frame_observer.h" | 12 #include "content/public/renderer/render_frame_observer.h" |
12 #include "content/public/renderer/render_frame_observer_tracker.h" | 13 #include "content/public/renderer/render_frame_observer_tracker.h" |
13 | 14 |
14 namespace prerender { | 15 namespace prerender { |
15 | 16 |
16 // Helper class to track whether its RenderFrame is currently being prerendered. | 17 // Helper class to track whether its RenderFrame is currently being prerendered. |
17 // Created when prerendering starts and deleted as soon as it stops. | 18 // Created when prerendering starts and deleted as soon as it stops. |
18 class PrerenderHelper | 19 class PrerenderHelper |
19 : public content::RenderFrameObserver, | 20 : public content::RenderFrameObserver, |
20 public content::RenderFrameObserverTracker<PrerenderHelper> { | 21 public content::RenderFrameObserverTracker<PrerenderHelper> { |
21 public: | 22 public: |
22 explicit PrerenderHelper(content::RenderFrame* render_frame); | 23 explicit PrerenderHelper(content::RenderFrame* render_frame); |
23 ~PrerenderHelper() override; | 24 ~PrerenderHelper() override; |
24 | 25 |
25 // Returns true if |render_view| is currently prerendering. | 26 // Returns true if |render_view| is currently prerendering. |
26 static bool IsPrerendering(const content::RenderFrame* render_frame); | 27 static bool IsPrerendering(const content::RenderFrame* render_frame); |
27 | 28 |
28 private: | 29 private: |
29 // RenderFrameObserver implementation. | 30 // RenderFrameObserver implementation. |
30 bool OnMessageReceived(const IPC::Message& message) override; | 31 bool OnMessageReceived(const IPC::Message& message) override; |
31 void OnDestruct() override; | 32 void OnDestruct() override; |
32 | 33 |
33 void OnSetIsPrerendering(bool is_prerendering); | 34 void OnSetIsPrerendering(PrerenderMode mode); |
34 | 35 |
35 DISALLOW_COPY_AND_ASSIGN(PrerenderHelper); | 36 DISALLOW_COPY_AND_ASSIGN(PrerenderHelper); |
36 }; | 37 }; |
37 | 38 |
38 } // namespace prerender | 39 } // namespace prerender |
39 | 40 |
40 #endif // CHROME_RENDERER_PRERENDER_PRERENDER_HELPER_H_ | 41 #endif // CHROME_RENDERER_PRERENDER_PRERENDER_HELPER_H_ |
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