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|    1 // Copyright (c) 2006-2008 The Chromium Authors. All rights reserved. |    1 // Copyright (c) 2006-2008 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_BROWSER_RENDER_WIDGET_HOST_H_ |    5 #ifndef CHROME_BROWSER_RENDER_WIDGET_HOST_H_ | 
|    6 #define CHROME_BROWSER_RENDER_WIDGET_HOST_H_ |    6 #define CHROME_BROWSER_RENDER_WIDGET_HOST_H_ | 
|    7  |    7  | 
|    8 #include <windows.h> |    8 #include <windows.h> | 
|    9  |    9  | 
|   10 #include "base/gfx/size.h" |   10 #include "base/gfx/size.h" | 
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|  187   // warning too soon. |  187   // warning too soon. | 
|  188   void RestartHangMonitorTimeout(); |  188   void RestartHangMonitorTimeout(); | 
|  189    |  189    | 
|  190   // Stops all existing hang monitor timeouts and assumes the renderer is |  190   // Stops all existing hang monitor timeouts and assumes the renderer is | 
|  191   // responsive. |  191   // responsive. | 
|  192   void StopHangMonitorTimeout(); |  192   void StopHangMonitorTimeout(); | 
|  193  |  193  | 
|  194   // Starts a hang monitor timeout. If there's already a hang monitor timeout |  194   // Starts a hang monitor timeout. If there's already a hang monitor timeout | 
|  195   // the new one will only fire if it has a shorter delay than the time |  195   // the new one will only fire if it has a shorter delay than the time | 
|  196   // left on the existing timeouts. |  196   // left on the existing timeouts. | 
|  197   void StartHangMonitorTimeout(TimeDelta delay); |  197   void StartHangMonitorTimeout(base::TimeDelta delay); | 
|  198  |  198  | 
|  199   // Called when we receive a notification indicating that the renderer |  199   // Called when we receive a notification indicating that the renderer | 
|  200   // process has gone. |  200   // process has gone. | 
|  201   void RendererExited(); |  201   void RendererExited(); | 
|  202  |  202  | 
|  203   // Called when the system theme changes. At this time all existing native |  203   // Called when the system theme changes. At this time all existing native | 
|  204   // theme handles are invalid and the renderer must obtain new ones and |  204   // theme handles are invalid and the renderer must obtain new ones and | 
|  205   // repaint. |  205   // repaint. | 
|  206   void SystemThemeChanged(); |  206   void SystemThemeChanged(); | 
|  207  |  207  | 
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|  275   scoped_ptr<WebMouseEvent> next_mouse_move_; |  275   scoped_ptr<WebMouseEvent> next_mouse_move_; | 
|  276  |  276  | 
|  277   // The View associated with the RenderViewHost. The lifetime of this object |  277   // The View associated with the RenderViewHost. The lifetime of this object | 
|  278   // is associated with the lifetime of the Render process. If the Renderer |  278   // is associated with the lifetime of the Render process. If the Renderer | 
|  279   // crashes, its View is destroyed and this pointer becomes NULL, even though |  279   // crashes, its View is destroyed and this pointer becomes NULL, even though | 
|  280   // render_view_host_ lives on to load another URL (creating a new View while |  280   // render_view_host_ lives on to load another URL (creating a new View while | 
|  281   // doing so). |  281   // doing so). | 
|  282   RenderWidgetHostView* view_; |  282   RenderWidgetHostView* view_; | 
|  283  |  283  | 
|  284   // The time when an input event was sent to the RenderWidget. |  284   // The time when an input event was sent to the RenderWidget. | 
|  285   TimeTicks input_event_start_time_; |  285   base::TimeTicks input_event_start_time_; | 
|  286  |  286  | 
|  287   // Indicates whether a page is loading or not. |  287   // Indicates whether a page is loading or not. | 
|  288   bool is_loading_; |  288   bool is_loading_; | 
|  289   // Indicates whether a page is hidden or not. |  289   // Indicates whether a page is hidden or not. | 
|  290   bool is_hidden_; |  290   bool is_hidden_; | 
|  291   // If true, then we should not ask our view to repaint when our backingstore |  291   // If true, then we should not ask our view to repaint when our backingstore | 
|  292   // is updated. |  292   // is updated. | 
|  293   bool suppress_view_updating_; |  293   bool suppress_view_updating_; | 
|  294  |  294  | 
|  295   // If true, then we should repaint when restoring even if we have a |  295   // If true, then we should repaint when restoring even if we have a | 
|  296   // backingstore.  This flag is set to true if we receive a paint message |  296   // backingstore.  This flag is set to true if we receive a paint message | 
|  297   // while is_hidden_ to true.  Even though we tell the render widget to hide |  297   // while is_hidden_ to true.  Even though we tell the render widget to hide | 
|  298   // itself, a paint message could already be in flight at that point. |  298   // itself, a paint message could already be in flight at that point. | 
|  299   bool needs_repainting_on_restore_; |  299   bool needs_repainting_on_restore_; | 
|  300  |  300  | 
|  301   // The following value indicates a time in the future when we would consider |  301   // The following value indicates a time in the future when we would consider | 
|  302   // the renderer hung if it does not generate an appropriate response message. |  302   // the renderer hung if it does not generate an appropriate response message. | 
|  303   Time time_when_considered_hung_; |  303   base::Time time_when_considered_hung_; | 
|  304  |  304  | 
|  305   // This timer runs to check if time_when_considered_hung_ has past. |  305   // This timer runs to check if time_when_considered_hung_ has past. | 
|  306   base::OneShotTimer<RenderWidgetHost> hung_renderer_timer_; |  306   base::OneShotTimer<RenderWidgetHost> hung_renderer_timer_; | 
|  307  |  307  | 
|  308   // This is true if the renderer is currently unresponsive. |  308   // This is true if the renderer is currently unresponsive. | 
|  309   bool is_unresponsive_; |  309   bool is_unresponsive_; | 
|  310  |  310  | 
|  311   // Optional observer that listens for notifications of painting. |  311   // Optional observer that listens for notifications of painting. | 
|  312   scoped_ptr<PaintObserver> paint_observer_; |  312   scoped_ptr<PaintObserver> paint_observer_; | 
|  313  |  313  | 
|  314   // Set when we call DidPaintRect/DidScrollRect on the view. |  314   // Set when we call DidPaintRect/DidScrollRect on the view. | 
|  315   bool view_being_painted_; |  315   bool view_being_painted_; | 
|  316  |  316  | 
|  317   // Set if we are waiting for a repaint ack for the view. |  317   // Set if we are waiting for a repaint ack for the view. | 
|  318   bool repaint_ack_pending_; |  318   bool repaint_ack_pending_; | 
|  319  |  319  | 
|  320   // Used for UMA histogram logging to measure the time for a repaint view |  320   // Used for UMA histogram logging to measure the time for a repaint view | 
|  321   // operation to finish. |  321   // operation to finish. | 
|  322   TimeTicks repaint_start_time_; |  322   base::TimeTicks repaint_start_time_; | 
|  323  |  323  | 
|  324   DISALLOW_EVIL_CONSTRUCTORS(RenderWidgetHost); |  324   DISALLOW_EVIL_CONSTRUCTORS(RenderWidgetHost); | 
|  325 }; |  325 }; | 
|  326  |  326  | 
|  327 class RenderWidgetHost::BackingStore { |  327 class RenderWidgetHost::BackingStore { | 
|  328  public: |  328  public: | 
|  329   BackingStore(const gfx::Size& size); |  329   BackingStore(const gfx::Size& size); | 
|  330   ~BackingStore(); |  330   ~BackingStore(); | 
|  331  |  331  | 
|  332   HDC dc() { return hdc_; } |  332   HDC dc() { return hdc_; } | 
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|  357  |  357  | 
|  358 class RenderWidgetHost::PaintObserver { |  358 class RenderWidgetHost::PaintObserver { | 
|  359  public: |  359  public: | 
|  360   virtual ~PaintObserver() {} |  360   virtual ~PaintObserver() {} | 
|  361  |  361  | 
|  362   // Called each time the RenderWidgetHost paints. |  362   // Called each time the RenderWidgetHost paints. | 
|  363   virtual void RenderWidgetHostDidPaint(RenderWidgetHost* rwh) = 0; |  363   virtual void RenderWidgetHostDidPaint(RenderWidgetHost* rwh) = 0; | 
|  364 }; |  364 }; | 
|  365  |  365  | 
|  366 #endif  // #ifndef CHROME_BROWSER_RENDER_WIDGET_HOST_H_ |  366 #endif  // #ifndef CHROME_BROWSER_RENDER_WIDGET_HOST_H_ | 
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