[Mac] Organize some files into chrome/browser/ui/cocoa/tab_contents/....

chrome/browser/tab_contents/tab_contents_view_mac.mm

 // Copyright (c) 2010 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 <Carbon/Carbon.h>
 
 #include "chrome/browser/tab_contents/tab_contents_view_mac.h"
 
 #include <string>
 
 #include "chrome/browser/global_keyboard_shortcuts_mac.h"
 #include "chrome/browser/renderer_host/render_view_host.h"
 #include "chrome/browser/renderer_host/render_view_host_factory.h"
 #include "chrome/browser/renderer_host/render_widget_host.h"
 #include "chrome/browser/renderer_host/render_widget_host_view_mac.h"
 #include "chrome/browser/tab_contents/popup_menu_helper_mac.h"
 #include "chrome/browser/tab_contents/render_view_context_menu_mac.h"
 #include "chrome/browser/tab_contents/tab_contents.h"
 #include "chrome/browser/tab_contents/tab_contents_delegate.h"
 #import "chrome/browser/ui/cocoa/focus_tracker.h"
 #import "chrome/browser/ui/cocoa/browser_window_controller.h"
-#include "chrome/browser/ui/cocoa/sad_tab_controller.h"
-#import "chrome/browser/ui/cocoa/web_drag_source.h"
-#import "chrome/browser/ui/cocoa/web_drop_target.h"
+#import "chrome/browser/ui/cocoa/tab_contents/sad_tab_controller.h"
+#import "chrome/browser/ui/cocoa/tab_contents/web_drag_source.h"
+#import "chrome/browser/ui/cocoa/tab_contents/web_drop_target.h"
 #import "chrome/browser/ui/cocoa/view_id_util.h"
 #import "chrome/common/chrome_application_mac.h"
 #include "chrome/common/notification_details.h"
 #include "chrome/common/notification_source.h"
 #include "chrome/common/notification_type.h"
 #include "chrome/common/render_messages.h"
 #include "skia/ext/skia_utils_mac.h"
 #import "third_party/mozilla/NSPasteboard+Utils.h"
 
 using WebKit::WebDragOperation;
@@ skipping 476 matching lines @@
       [[[notification userInfo] objectForKey:kSelectionDirection]
         unsignedIntegerValue];
   if (direction == NSDirectSelection)
     return;
 
   [self tabContents]->
       FocusThroughTabTraversal(direction == NSSelectingPrevious);
 }
 
 @end