chrome/browser should build on the x86_64 architecture

chrome/browser/ui/cocoa/bookmarks/bookmark_bar_controller.mm

 // 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.
 
 #import "chrome/browser/ui/cocoa/bookmarks/bookmark_bar_controller.h"
 
 #include "base/mac/bundle_locations.h"
 #include "base/mac/mac_util.h"
 #include "base/metrics/histogram.h"
 #include "base/sys_string_conversions.h"
@@ skipping 214 matching lines @@
 
 @end
 
 @implementation BookmarkBarController
 
 @synthesize visualState = visualState_;
 @synthesize lastVisualState = lastVisualState_;
 @synthesize delegate = delegate_;
 
 - (id)initWithBrowser:(Browser*)browser
-         initialWidth:(float)initialWidth
+         initialWidth:(CGFloat)initialWidth
              delegate:(id<BookmarkBarControllerDelegate>)delegate
        resizeDelegate:(id<ViewResizer>)resizeDelegate {
   if ((self = [super initWithNibName:@"BookmarkBar"
                               bundle:base::mac::FrameworkBundle()])) {
     // Initialize to an invalid state.
     visualState_ = bookmarks::kInvalidState;
     lastVisualState_ = bookmarks::kInvalidState;
 
     browser_ = browser;
     initialWidth_ = initialWidth;
@@ skipping 2547 matching lines @@
 // to minimize touching the object passed in (likely a mock).
 - (void)setButtonContextMenu:(id)menu {
   buttonContextMenu_ = menu;
 }
 
 - (void)setIgnoreAnimations:(BOOL)ignore {
   ignoreAnimations_ = ignore;
 }
 
 @end