Add non-member non-mutating methods for common gfx::Rect operations.

chrome/browser/ui/views/toolbar_view.cc

 // Copyright (c) 2012 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/ui/views/toolbar_view.h"
 
 #include "base/i18n/number_formatting.h"
 #include "base/utf_string_conversions.h"
 #include "chrome/app/chrome_command_ids.h"
 #include "chrome/browser/command_updater.h"
@@ skipping 426 matching lines @@
   location_bar_container_->SetInToolbar(false);
   location_container_bounds.set_height(
       location_bar_container_->GetPreferredSize().height());
 
   // If bounds of |location_bar_container_| is not contained within its
   // parent's, adjust the former's to within the latter's.  This will clip its
   // child |location_bar_view_| within its bounds without resizing it.
   // Note that parent of |location_bar_container_| i.e. BrowserView can't clip
   // its children, else it loses the 3D shadows.
   gfx::Rect parent_rect = location_bar_container_->parent()->GetLocalBounds();
-  gfx::Rect intersect_rect = parent_rect;
-  intersect_rect.Intersect(location_container_bounds);
+  gfx::Rect intersect_rect =
+      gfx::IntersectRects(parent_rect, location_container_bounds);
   // If the two bounds don't intersect, set bounds of |location_bar_container_|
   // to 0.
   location_bar_container_->SetBoundsRect(intersect_rect);
 }
 
 views::View* ToolbarView::GetBookmarkBubbleAnchor() {
   views::View* star_view = location_bar()->star_view();
   if (star_view && star_view->visible())
     return star_view;
   return app_menu_;
@@ skipping 596 matching lines @@
   // LocationBarContainer is not a child of the ToolbarView.
   gfx::Point origin(bounds.origin());
   views::View::ConvertPointToTarget(this, location_bar_container_->parent(),
                                     &origin);
   gfx::Rect target_bounds(origin, bounds.size());
   if (location_bar_container_->GetTargetBounds() != target_bounds) {
     location_bar_container_->SetInToolbar(true);
     location_bar_container_->SetBoundsRect(target_bounds);
   }
 }