mac: Move bookmark hierarchy arrow from a pdf to a png.

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

 // Copyright (c) 2011 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_button_cell.h"
 
 #include "base/logging.h"
 #include "base/sys_string_conversions.h"
 #import "chrome/browser/bookmarks/bookmark_model.h"
 #import "chrome/browser/ui/cocoa/bookmarks/bookmark_button.h"
 #import "chrome/browser/ui/cocoa/bookmarks/bookmark_menu.h"
 #include "content/public/browser/user_metrics.h"
 #include "grit/generated_resources.h"
+#include "grit/ui_resources.h"
 #include "ui/base/l10n/l10n_util_mac.h"
+#include "ui/base/resource/resource_bundle.h"
 #include "ui/gfx/mac/nsimage_cache.h"
 
 using content::UserMetricsAction;
 
+const int kHierarchyButtonXMargin = 4;
 
 @interface BookmarkButtonCell(Private)
 - (void)configureBookmarkButtonCell;
 - (void)applyTextColor;
 @end
 
 
 @implementation BookmarkButtonCell
 
 @synthesize startingChildIndex = startingChildIndex_;
@@ skipping 187 matching lines @@
 
 // See comment above mouseEntered:, above.
 - (void)mouseExited:(NSEvent*)event {
   [[self controlView] mouseExited:event];
   [super mouseExited:event];
 }
 
 - (void)setDrawFolderArrow:(BOOL)draw {
   drawFolderArrow_ = draw;
   if (draw && !arrowImage_) {
+    ui::ResourceBundle& rb = ui::ResourceBundle::GetSharedInstance();
     arrowImage_.reset(
-        [gfx::GetCachedImageWithName(@"menu_hierarchy_arrow.pdf") retain]);
+        [rb.GetNativeImageNamed(IDR_MENU_HIERARCHY_ARROW).ToNSImage() retain]);
   }
 }
 
 // Add extra size for the arrow so it doesn't overlap the text.
 // Does not sanity check to be sure this is actually a folder node.
 - (NSSize)cellSize {
   NSSize cellSize = [super cellSize];
   if (drawFolderArrow_) {
-    cellSize.width += [arrowImage_ size].width;  // plus margin?
+    cellSize.width += [arrowImage_ size].width + 2 * kHierarchyButtonXMargin;
   }
   return cellSize;
 }
 
 // Override cell drawing to add a submenu arrow like a real menu.
 - (void)drawInteriorWithFrame:(NSRect)cellFrame inView:(NSView*)controlView {
   // First draw "everything else".
   [super drawInteriorWithFrame:cellFrame inView:controlView];
 
   // If asked to do so, and if a folder, draw the arrow.
   if (!drawFolderArrow_)
     return;
   BookmarkButton* button = static_cast<BookmarkButton*>([self controlView]);
   DCHECK([button respondsToSelector:@selector(isFolder)]);
   if ([button isFolder]) {
     NSRect imageRect = NSZeroRect;
     imageRect.size = [arrowImage_ size];
     const CGFloat kArrowOffset = 1.0;  // Required for proper centering.
-    CGFloat dX = NSWidth(cellFrame) - NSWidth(imageRect);
+    CGFloat dX =
+        NSWidth(cellFrame) - NSWidth(imageRect) - kHierarchyButtonXMargin;
     CGFloat dY = (NSHeight(cellFrame) / 2.0) - (NSHeight(imageRect) / 2.0) +
         kArrowOffset;
     NSRect drawRect = NSOffsetRect(imageRect, dX, dY);
     [arrowImage_ drawInRect:drawRect
                     fromRect:imageRect
                    operation:NSCompositeSourceOver
                     fraction:[self isEnabled] ? 1.0 : 0.5
               respectFlipped:YES
                        hints:nil];
   }
 }
 
 - (int)verticalTextOffset {
   return 0;
 }
 
 @end