Cleanup: Remove more forward declarations in various chrome/browser directories.

chrome/browser/automation/automation_provider.h

 // Copyright (c) 2011 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.
 
 // This implements a browser-side endpoint for UI automation activity.
 // The client-side endpoint is implemented by AutomationProxy.
 // The entire lifetime of this object should be contained within that of
 // the BrowserProcess, and in particular the NotificationService that's
 // hung off of it.
 
@@ skipping 20 matching lines @@
 #include "content/browser/trace_controller.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/notification_observer.h"
 #include "ipc/ipc_channel.h"
 
 #if defined(OS_WIN) && !defined(USE_AURA)
 #include "ui/gfx/native_widget_types.h"
 #include "views/events/event.h"
 #endif  // defined(OS_WIN) && !defined(USE_AURA)
 
-class PopupMenuWaiter;
 class TabContents;
 struct AutomationMsg_Find_Params;
 struct Reposition_Params;
 struct ExternalTabSettings;
 
 namespace IPC {
 class ChannelProxy;
 }
 
-class AutofillProfile;
 class AutomationBrowserTracker;
 class AutomationExtensionTracker;
-class AutomationOmniboxTracker;
 class AutomationResourceMessageFilter;
 class AutomationTabTracker;
 class AutomationWindowTracker;
 class Browser;
-class CreditCard;
 class DownloadItem;
 class Extension;
-class ExtensionPortContainer;
 class ExtensionTestResultNotificationObserver;
 class ExternalTabContainer;
 class FilePath;
 class InitialLoadObserver;
 class LoginHandler;
 class MetricEventDurationObserver;
 class NavigationController;
 class NavigationControllerRestoredObserver;
 class Profile;
 class RenderViewHost;
 class TabContents;
-struct AutocompleteMatchData;
 
 namespace base {
 class DictionaryValue;
 }
 
 namespace gfx {
 class Point;
 }
 
 class AutomationProvider
@@ skipping 329 matching lines @@
   std::string channel_id_;
 
   // Trace data that has been collected but not flushed to the automation
   // client.
   TracingData tracing_data_;
 
   DISALLOW_COPY_AND_ASSIGN(AutomationProvider);
 };
 
 #endif  // CHROME_BROWSER_AUTOMATION_AUTOMATION_PROVIDER_H_