Hook up the resize rect for Mac and enable its use in the renderer (mac-only)...

chrome/browser/browser_window_cocoa.mm

 // Copyright (c) 2009 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.
 
 #include "base/gfx/rect.h"
 #include "base/logging.h"
 #include "chrome/browser/browser_window_cocoa.h"
 #include "chrome/browser/browser_window_controller.h"
 
 BrowserWindowCocoa::BrowserWindowCocoa(BrowserWindowController* controller, 
@@ skipping 81 matching lines @@
 
 void BrowserWindowCocoa::SetFullscreen(bool fullscreen) {
   NOTIMPLEMENTED();
 }
 
 bool BrowserWindowCocoa::IsFullscreen() const {
   NOTIMPLEMENTED();
   return false;
 }
 
+@interface NSWindow(OSInternals)
+- (NSRect)_growBoxRect;
+@end
+
 gfx::Rect BrowserWindowCocoa::GetRootWindowResizerRect() const {
-  // TODO(pinkerton): fill this in so scrollbars go in the correct places
-  NOTIMPLEMENTED();
-  return gfx::Rect();
+  NSRect windowRect = [window_ _growBoxRect];
+  // convert from window coordinates to the coordinates of the currently
+  // selected tab. |tabRect| will already be flipped into WebKit coordinates.
+  NSRect tabRect = [controller_ selectedTabGrowBoxFromWindowGrowBox:windowRect];
+  return gfx::Rect(NSRectToCGRect(tabRect));
 }
 
 LocationBar* BrowserWindowCocoa::GetLocationBar() const {
   return [controller_ locationBar];
 }
 
 void BrowserWindowCocoa::SetFocusToLocationBar() {
   NOTIMPLEMENTED();
 }
 
@@ skipping 65 matching lines @@
                                         void* parent_window) {
   NOTIMPLEMENTED();
 }
                             
 void BrowserWindowCocoa::DestroyBrowser() {
   [controller_ destroyBrowser];
 
   // at this point the controller is dead (autoreleased), so
   // make sure we don't try to reference it any more.
 }