[Mac] Replace the custom bookmark menus with native NSMenus.

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

Index: chrome/browser/ui/cocoa/bookmarks/bookmark_button_cell.mm
diff --git a/chrome/browser/ui/cocoa/bookmarks/bookmark_button_cell.mm b/chrome/browser/ui/cocoa/bookmarks/bookmark_button_cell.mm
index 392c7ca623d000ad1e3d3cd9f8c08cbf94c51ff2..3de541556e8e6777d7ce5d9d9d493493da5954c6 100644
--- a/chrome/browser/ui/cocoa/bookmarks/bookmark_button_cell.mm
+++ b/chrome/browser/ui/cocoa/bookmarks/bookmark_button_cell.mm
@@ -13,7 +13,6 @@
 #include "content/browser/user_metrics.h"
 #include "grit/generated_resources.h"
 #include "ui/base/l10n/l10n_util_mac.h"
-#include "ui/gfx/mac/nsimage_cache.h"
 
 
 @interface BookmarkButtonCell(Private)
@@ -25,7 +24,6 @@
 @implementation BookmarkButtonCell
 
 @synthesize startingChildIndex = startingChildIndex_;
-@synthesize drawFolderArrow = drawFolderArrow_;
 
 + (id)buttonCellForNode:(const BookmarkNode*)node
             contextMenu:(NSMenu*)contextMenu
@@ -208,48 +206,4 @@
   [super mouseExited:event];
 }
 
-- (void)setDrawFolderArrow:(BOOL)draw {
-  drawFolderArrow_ = draw;
-  if (draw && !arrowImage_) {
-    arrowImage_.reset(
-        [gfx::GetCachedImageWithName(@"menu_hierarchy_arrow.pdf") 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?
-  }
-  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 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
-                neverFlipped:YES];
-  }
-}
-
 @end