[Mac] Move all the related files for the Wrench menu into a subdir of c/b/u/c...

chrome/browser/ui/cocoa/wrench_menu_button_cell.mm

-// Copyright (c) 2010 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/wrench_menu_button_cell.h"
-
-#include "base/scoped_nsobject.h"
-
-@implementation WrenchMenuButtonCell
-
-- (void)drawBezelWithFrame:(NSRect)frame inView:(NSView*)controlView {
-  [NSGraphicsContext saveGraphicsState];
-
-  // Inset the rect to match the appearance of the layout of interface builder.
-  // The bounding rect of buttons is actually larger than the display rect shown
-  // there.
-  frame = NSInsetRect(frame, 0.0, 1.0);
-
-  // Stroking the rect gives a weak stroke.  Filling and insetting gives a
-  // strong, un-anti-aliased border.
-  [[NSColor colorWithDeviceWhite:0.663 alpha:1.0] set];
-  NSRectFill(frame);
-  frame = NSInsetRect(frame, 1.0, 1.0);
-
-  // The default state should be a subtle gray gradient.
-  if (![self isHighlighted]) {
-    NSColor* end = [NSColor colorWithDeviceWhite:0.922 alpha:1.0];
-    scoped_nsobject<NSGradient> gradient(
-        [[NSGradient alloc] initWithStartingColor:[NSColor whiteColor]
-                                      endingColor:end]);
-    [gradient drawInRect:frame angle:90.0];
-  } else {
-    // |+selectedMenuItemColor| appears to be a gradient, so just filling the
-    // rect with that color produces the desired effect.
-    [[NSColor selectedMenuItemColor] set];
-    NSRectFill(frame);
-  }
-
-  [NSGraphicsContext restoreGraphicsState];
-}
-
-- (NSBackgroundStyle)interiorBackgroundStyle {
-  if ([self isHighlighted])
-    return NSBackgroundStyleDark;
-  return [super interiorBackgroundStyle];
-}
-
-@end