Make gfx::Rect class operations consistently mutate the class they are called on.

chrome/browser/ui/tabs/dock_info.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/tabs/dock_info.h"
 
 #include <stdlib.h>
 
 #include "base/logging.h"
 
@@ skipping 206 matching lines @@
 gfx::Rect DockInfo::GetPopupRect() const {
   int x = hot_spot_.x() - popup_width() / 2;
   int y = hot_spot_.y() - popup_height() / 2;
   switch (type_) {
     case LEFT_OF_WINDOW:
     case RIGHT_OF_WINDOW:
     case TOP_OF_WINDOW:
     case BOTTOM_OF_WINDOW: {
       // Constrain the popup to the monitor's bounds.
       gfx::Rect ideal_bounds(x, y, popup_width(), popup_height());
-      ideal_bounds = ideal_bounds.AdjustToFit(monitor_bounds_);
+      ideal_bounds.AdjustToFit(monitor_bounds_);
       return ideal_bounds;
     }
     case DockInfo::MAXIMIZE:
       y += popup_height() / 2;
       break;
     case DockInfo::LEFT_HALF:
       x += popup_width() / 2;
       break;
     case DockInfo::RIGHT_HALF:
       x -= popup_width() / 2;
@@ skipping 12 matching lines @@
                                  int x,
                                  int y,
                                  Type type) {
   if (IsCloseToMonitorPoint(screen_loc, x, y, type, &in_enable_area_)) {
     hot_spot_.SetPoint(x, y);
     type_ = type;
     return true;
   }
   return false;
 }