mac 10.7 SDK: Add missing protocols.

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

Index: chrome/browser/ui/cocoa/bookmarks/bookmark_bar_controller.h
diff --git a/chrome/browser/ui/cocoa/bookmarks/bookmark_bar_controller.h b/chrome/browser/ui/cocoa/bookmarks/bookmark_bar_controller.h
index 5d9542d86c0d53d2a5b0db6f02e3d442ce688b69..69cc07459274b24c63321c682a81d95b5f1e2cb4 100644
--- a/chrome/browser/ui/cocoa/bookmarks/bookmark_bar_controller.h
+++ b/chrome/browser/ui/cocoa/bookmarks/bookmark_bar_controller.h
@@ -8,6 +8,7 @@
 #import <Cocoa/Cocoa.h>
 #include <map>
 
+#import "base/mac/cocoa_protocols.h"
 #include "base/memory/scoped_nsobject.h"
 #include "base/memory/scoped_ptr.h"
 #import "chrome/browser/chrome_browser_application_mac.h"
@@ -149,7 +150,8 @@ willAnimateFromState:(bookmarks::VisualState)oldState
                      BookmarkButtonDelegate,
                      BookmarkButtonControllerProtocol,
                      CrApplicationEventHookProtocol,
-                     NSUserInterfaceValidations> {
+                     NSUserInterfaceValidations,
+                     NSDraggingDestination> {
  @private
   // The visual state of the bookmark bar. If an animation is running, this is
   // set to the "destination" and |lastVisualState_| is set to the "original"