Bitmap transport

chrome/renderer/render_widget.h

 // Copyright (c) 2006-2008 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 CHROME_RENDERER_RENDER_WIDGET_H__
 #define CHROME_RENDERER_RENDER_WIDGET_H__
 
 #include <vector>
 #include "base/basictypes.h"
 #include "base/gfx/native_widget_types.h"
 #include "base/gfx/point.h"
 #include "base/gfx/rect.h"
 #include "base/gfx/size.h"
 #include "base/ref_counted.h"
 #include "base/shared_memory.h"
 #include "chrome/common/ipc_channel.h"
+#include "chrome/renderer/render_process.h"
 #include "skia/ext/platform_canvas.h"
 
 #include "webkit/glue/webwidget_delegate.h"
 #include "webkit/glue/webcursor.h"
 
 class RenderThreadBase;
 struct WebPluginGeometry;
 
 // RenderWidget provides a communication bridge between a WebWidget and
 // a RenderWidgetHost, the latter of which lives in a different process.
@@ skipping 52 matching lines @@
   virtual void SetWindowRect(WebWidget* webwidget, const gfx::Rect& rect);
   virtual void GetRootWindowRect(WebWidget* webwidget, gfx::Rect* rect);
   virtual void GetRootWindowResizerRect(WebWidget* webwidget, gfx::Rect* rect);
   virtual void DidMove(WebWidget* webwidget, const WebPluginGeometry& move);
   virtual void RunModal(WebWidget* webwidget) {}
   virtual bool IsHidden() { return is_hidden_; }
 
   // Close the underlying WebWidget.
   void Close();
 
-  // Get the size of the paint buffer for the given rectangle, rounding up to
-  // the allocation granularity of the system.
-  static size_t GetPaintBufSize(const gfx::Rect& rect);
-
  protected:
   // Friend RefCounted so that the dtor can be non-public. Using this class
   // without ref-counting is an error.
   friend class base::RefCounted<RenderWidget>;
 
   RenderWidget(RenderThreadBase* render_thread, bool activatable);
   virtual ~RenderWidget();
 
   // Initializes this view with the given opener.  CompleteInit must be called
   // later.
@@ skipping 82 matching lines @@
 
   // The window we are embedded within.  TODO(darin): kill this.
   gfx::NativeViewId host_window_;
 
   // We store the current cursor object so we can avoid spamming SetCursor
   // messages.
   WebCursor current_cursor_;
   // The size of the RenderWidget.
   gfx::Size size_;
 
-  // Shared memory handles that are currently in use to transfer an image to
-  // the browser.
-  base::SharedMemory* current_paint_buf_;
-  base::SharedMemory* current_scroll_buf_;
+  // Transport DIBs that are currently in use to transfer an image to the
+  // browser.
+  TransportDIB* current_paint_buf_;
+  TransportDIB* current_scroll_buf_;
 
   // The smallest bounding rectangle that needs to be re-painted.  This is non-
   // empty if a paint event is pending.
   gfx::Rect paint_rect_;
 
   // The clip rect for the pending scroll event.  This is non-empty if a
   // scroll event is pending.
   gfx::Rect scroll_rect_;
 
   // The area that must be reserved for drawing the resize corner.
@@ skipping 51 matching lines @@
   // Whether the window for this RenderWidget can be activated.
   bool activatable_;
 
   // Holds all the needed plugin window moves for a scroll.
   std::vector<WebPluginGeometry> plugin_window_moves_;
 
   DISALLOW_EVIL_CONSTRUCTORS(RenderWidget);
 };
 
 #endif  // CHROME_RENDERER_RENDER_WIDGET_H__