FBTF: Forward declare everything possible in testing_profile.h

chrome/browser/web_applications/web_app_unittest.cc

 // 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.
 
 #include "chrome/browser/web_applications/web_app.h"
 
 #include "base/file_path.h"
 #include "base/string_util.h"
 #include "base/utf_string_conversions.h"
+#include "chrome/browser/chrome_thread.h"
 #include "chrome/browser/renderer_host/test/test_render_view_host.h"
 #include "chrome/common/render_messages.h"
 #include "chrome/test/testing_profile.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 class WebApplicationTest : public RenderViewHostTestHarness {
  public:
   WebApplicationTest()
       : RenderViewHostTestHarness(),
         ui_thread_(ChromeThread::UI, &message_loop_) {
@@ skipping 35 matching lines @@
   EXPECT_EQ(description, info.description);
   EXPECT_EQ(url, info.url);
 }
 
 TEST_F(WebApplicationTest, GetDataDir) {
   FilePath test_path(FILE_PATH_LITERAL("/path/to/test"));
   FilePath result = web_app::GetDataDir(test_path);
   test_path = test_path.AppendASCII("Web Applications");
   EXPECT_EQ(test_path.value(), result.value());
 }