Add the ability to resize the window when over the custom frame.

chrome/browser/gtk/tabs/tab_renderer_gtk.cc

 // 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 "chrome/browser/gtk/tabs/tab_renderer_gtk.h"
 
 #include "app/gfx/canvas_paint.h"
 #include "app/l10n_util.h"
 #include "app/resource_bundle.h"
 #include "chrome/browser/browser.h"
@@ skipping 497 matching lines @@
     gtk_widget_hide(close_button_->widget());
   }
 }
 
 void TabRendererGtk::PaintTab(GdkEventExpose* event) {
   gfx::CanvasPaint canvas(event, false);
   if (canvas.is_empty())
     return;
 
   // The tab is rendered into a windowless widget whose offset is at the
-  // coordinate [x(), y()].  Additionally, the parent widget is windowless, and
-  // it has an offset of event->area.  Translate by these offsets so we can
-  // render at (0,0) to match windows rendering metrics.
-  canvas.TranslateInt(x(), y() + event->area.y);
+  // coordinate event->area.  Translate by these offsets so we can render at
+  // (0,0) to match Windows' rendering metrics.
+  canvas.TranslateInt(event->area.x, event->area.y);
   Paint(&canvas);
 }
 
 void TabRendererGtk::PaintTabBackground(gfx::Canvas* canvas) {
   if (IsSelected()) {
     // Sometimes detaching a tab quickly can result in the model reporting it
     // as not being selected, so is_drag_clone_ ensures that we always paint
     // the active representation for the dragged tab.
     PaintActiveTabBackground(canvas);
   } else {
@@ skipping 210 matching lines @@
   gfx::Font base_font = rb.GetFont(ResourceBundle::BaseFont);
   title_font_ = new gfx::Font(gfx::Font::CreateFont(base_font.FontName(), 10));
   title_font_height_ = title_font_->height();
 
   InitializeLoadingAnimationData(&rb, &loading_animation_data);
 
   crashed_fav_icon = rb.GetBitmapNamed(IDR_SAD_FAVICON);
 
   initialized_ = true;
 }