Revert 34998, more stabbing in the dark to find a perf regression - Mac: impl...

chrome/browser/cocoa/tab_strip_controller.h

 // Copyright (c) 2009 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.
 
 #ifndef CHROME_BROWSER_COCOA_TAB_STRIP_CONTROLLER_H_
 #define CHROME_BROWSER_COCOA_TAB_STRIP_CONTROLLER_H_
 
 #import <Cocoa/Cocoa.h>
 
 #include <deque>
 #include <map>
 
 #include "base/scoped_nsobject.h"
 #include "base/scoped_ptr.h"
 #import "chrome/browser/cocoa/tab_controller_target.h"
-#import "chrome/browser/cocoa/url_drop_target.h"
 #import "third_party/GTM/AppKit/GTMWindowSheetController.h"
 
 @class TabView;
 @class TabStripView;
 
 class Browser;
 class ConstrainedWindowMac;
 class TabStripModelObserverBridge;
 class TabStripModel;
 class TabContents;
 class ToolbarModel;
 
 // A class that handles managing the tab strip in a browser window. It uses
 // a supporting C++ bridge object to register for notifications from the
 // TabStripModel. The Obj-C part of this class handles drag and drop and all
 // the other Cocoa-y aspects.
 //
 // When a new tab is created, we create a TabController which manages loading
 // the contents, including toolbar, from a separate nib file. This controller
 // then handles replacing the contentView of the window. As tabs are switched,
 // the single child of the contentView is swapped around to hold the contents
 // (toolbar and all) representing that tab.
 
 @interface TabStripController :
   NSObject<TabControllerTarget,
-           URLDropTargetController,
            GTMWindowSheetControllerDelegate> {
  @private
   TabContents* currentTab_;   // weak, tab for which we're showing state
   scoped_nsobject<TabStripView> tabStripView_;
   NSView* switchView_;  // weak
   scoped_nsobject<NSView> dragBlockingView_;  // avoid bad window server drags
   NSButton* newTabButton_;  // weak, obtained from the nib.
 
   // Tracks the newTabButton_ for rollovers.
   scoped_nsobject<NSTrackingArea> newTabTrackingArea_;
@@ skipping 119 matching lines @@
 // closure.
 - (BOOL)inRapidClosureMode;
 
 // Returns YES if the user is allowed to drag tabs on the strip at this moment.
 // For example, this returns NO if there are any pending tab close animtations.
 - (BOOL)tabDraggingAllowed;
 
 // Default height for tabs.
 + (CGFloat)defaultTabHeight;
 
+// Effectively an implementation of the |URLDropTargetWindowController|
+// protocol, which the |BrowserWindowController| just reflects to us. This
+// needed for dropping URLs on the tab strip.
+- (void)dropURLs:(NSArray*)urls at:(NSPoint)location;
+- (void)indicateDropURLsAt:(NSPoint)location;
+- (void)hideDropURLsIndicator;
+
 // Returns the (lazily created) window sheet controller of this window. Used
 // for the per-tab sheets.
 - (GTMWindowSheetController*)sheetController;
 
 // See comments in browser_window_controller.h for documentation about these
 // functions.
 - (BOOL)attachConstrainedWindow:(ConstrainedWindowMac*)window;
 - (void)removeConstrainedWindow:(ConstrainedWindowMac*)window;
 
 @end
 
 // Notification sent when the number of tabs changes. The object will be this
 // controller.
 extern NSString* const kTabStripNumberOfTabsChanged;
 
 #endif  // CHROME_BROWSER_COCOA_TAB_STRIP_CONTROLLER_H_