[Mac] Refactor bookmark bar controller

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

Index: chrome/browser/ui/cocoa/bookmarks/bookmark_bar_view_cocoa.h
diff --git a/chrome/browser/ui/cocoa/bookmarks/bookmark_bar_view_cocoa.h b/chrome/browser/ui/cocoa/bookmarks/bookmark_bar_view_cocoa.h
index 6f8cb7b05fb1629ad46f027674fc0fdcafb42dbb..73e319c4ad5c225cf5dbf00b1f4b3e48df69e2fd 100644
--- a/chrome/browser/ui/cocoa/bookmarks/bookmark_bar_view_cocoa.h
+++ b/chrome/browser/ui/cocoa/bookmarks/bookmark_bar_view_cocoa.h
@@ -11,6 +11,10 @@
 
 @class BookmarkBarController;
 
+namespace bookmarks {
+const CGFloat kInitialNoItemTextFieldXOrigin = 5;
+}
+
 // A simple custom NSView for the bookmark bar used to prevent clicking and
 // dragging from moving the browser window.
 @interface BookmarkBarView : NSView {
@@ -19,13 +23,11 @@
   CGFloat dropIndicatorPosition_;  // x position
 
   BookmarkBarController* controller_;
-  base::scoped_nsobject<NSTextField> noItemTextfield_;
+  base::scoped_nsobject<NSTextField> noItemTextField_;
   base::scoped_nsobject<NSButton> importBookmarksButton_;
-  base::scoped_nsobject<NSView> noItemContainer_;
 }
-- (NSTextField*)noItemTextfield;
+- (NSTextField*)noItemTextField;
 - (NSButton*)importBookmarksButton;
-- (NSView*)noItemContainer;
 
 - (instancetype)initWithController:(BookmarkBarController*)controller
                              frame:(NSRect)frame;