Add a new resizer corner overlay.

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"
@@ skipping 102 matching lines @@
   void DoDeferredPaint();
   void DoDeferredScroll();
 
   // This method is called immediately after PaintRect but before the
   // corresponding paint or scroll message is send to the widget host.
   virtual void DidPaint() {}
 
   // RenderWidget IPC message handlers
   void OnClose();
   void OnCreatingNewAck(gfx::NativeViewId parent);
-  void OnResize(const gfx::Size& new_size);
+  void OnResize(const gfx::Size& new_size, const gfx::Rect& resizer_rect);
   void OnWasHidden();
   void OnWasRestored(bool needs_repainting);
   void OnPaintRectAck();
   void OnScrollRectAck();
   void OnHandleInputEvent(const IPC::Message& message);
   void OnMouseCaptureLost();
   void OnSetFocus(bool enable);
   void OnImeSetInputMode(bool is_active);
   void OnImeSetComposition(int string_type, int cursor_position,
                            int target_start, int target_end,
@@ skipping 63 matching lines @@
   base::SharedMemory* 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.
+  gfx::Rect resizer_rect_;
+
   // The scroll delta for a pending scroll event.
   gfx::Point scroll_delta_;
 
   // Flags for the next ViewHostMsg_PaintRect message.
   int next_paint_flags_;
 
   // True if we are expecting a PaintRect_ACK message (i.e., that a PaintRect
   // message has been sent).
   bool paint_reply_pending_;
 
@@ skipping 38 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__
+#endif  // CHROME_RENDERER_RENDER_WIDGET_H__