Add autoresize capability to chromium.

content/browser/renderer_host/render_widget_host.h

 // Copyright (c) 2011 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 CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_H_
 #define CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_H_
 #pragma once
 
 #include <deque>
 #include <string>
@@ skipping 478 matching lines @@
   // Notification that the user has made some kind of input that could
   // perform an action. The gestures that count are 1) any mouse down
   // event and 2) enter or space key presses.
   virtual void OnUserGesture() {}
 
   // Callbacks for notification when the renderer becomes unresponsive to user
   // input events, and subsequently responsive again.
   virtual void NotifyRendererUnresponsive() {}
   virtual void NotifyRendererResponsive() {}
 
+  // Called when auto-size resulted in the render size changing.
+  virtual void OnRenderSizeChanged(const gfx::Size& size) {}
+
   // ---------------------------------------------------------------------------
 
   // RenderViewHost overrides this method to impose further restrictions on when
   // to allow mouse lock.
   // Once the request is approved or rejected, GotResponseToLockMouseRequest()
   // will be called.
   virtual void RequestToLockMouse();
 
   void RejectMouseLockOrUnlockIfNecessary();
   bool IsMouseLocked() const;
 
   // RenderViewHost overrides this method to report when in fullscreen mode.
   virtual bool IsFullscreen() const;
 
+  // Indicates if the render widget host should track the render widget's size
+  // as opposed to visa versa.
+  void SetShouldAutoSize(bool enable);

[darin (slow to review), 2011/12/02 05:48:24]

elsewhere, you say "auto-resize", here you say "auto-size"... be consistent?

+
  protected:
   // true if a renderer has once been valid. We use this flag to display a sad
   // tab only when we lose our renderer and not if a paint occurs during
   // initialization.
   bool renderer_initialized_;
 
  private:
   FRIEND_TEST_ALL_PREFIXES(RenderWidgetHostTest, Resize);
   FRIEND_TEST_ALL_PREFIXES(RenderWidgetHostTest, ResizeThenCrash);
   FRIEND_TEST_ALL_PREFIXES(RenderWidgetHostTest, HiddenPaint);
@@ skipping 144 matching lines @@
   // hand is updated when the resize message is sent. This is very similar to
   // |resize_ack_pending_|, but the latter is not set if the new size has width
   // or height zero, which is why we need this too.
   gfx::Size in_flight_size_;
 
   // The reserved area we last sent to the renderer. |current_reserved_rect_|
   // is only updated once the resize message has been ack'd. This on the other
   // hand is updated when the resize message is sent.
   gfx::Rect in_flight_reserved_rect_;
 
+  // True if the render widget host should track the render widget's size as
+  // opposed to visa versa.
+  bool should_auto_size_;
+
   // True if a mouse move event was sent to the render view and we are waiting
   // for a corresponding ViewHostMsg_HandleInputEvent_ACK message.
   bool mouse_move_pending_;
 
   // The next mouse move event to send (only non-null while mouse_move_pending_
   // is true).
   scoped_ptr<WebKit::WebMouseEvent> next_mouse_move_;
 
   // (Similar to |mouse_move_pending_|.) True if a mouse wheel event was sent
   // and we are waiting for a corresponding ack.
@@ skipping 109 matching lines @@
   gfx::Point last_scroll_offset_;
 
   bool pending_mouse_lock_request_;
 
   base::WeakPtrFactory<RenderWidgetHost> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(RenderWidgetHost);
 };
 
 #endif  // CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_H_