Cleanup: Remove unneeded forward declarations from various chrome subdirectories.

chrome/test/ui/ui_test.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.
 
 #ifndef CHROME_TEST_UI_UI_TEST_H_
 #define CHROME_TEST_UI_UI_TEST_H_
 #pragma once
 
 // This file provides a common base for running UI unit tests, which operate
 // the entire browser application in a separate process for holistic
@@ skipping 15 matching lines @@
 #include "base/process.h"
 #include "base/time.h"
 #include "chrome/test/automation/proxy_launcher.h"
 #include "googleurl/src/gurl.h"
 #include "testing/platform_test.h"
 
 class AutomationProxy;
 class BrowserProxy;
 class FilePath;
 class GURL;
-class ScopedTempDir;
 class TabProxy;
 
 namespace base {
 class DictionaryValue;
 }
 
 // Base class for UI Tests. This implements the core of the functions.
 // This base class decouples all automation functionality from testing
 // infrastructure, for use without gtest.
 // If using gtest, you probably want to inherit from UITest (declared below)
@@ skipping 437 matching lines @@
 #ifdef UNIT_TEST
 std::ostream& operator<<(std::ostream& out, const std::wstring& wstr);
 
 template<typename T>
 std::ostream& operator<<(std::ostream& out, const ::scoped_ptr<T>& ptr) {
   return out << ptr.get();
 }
 #endif  // UNIT_TEST
 
 #endif  // CHROME_TEST_UI_UI_TEST_H_