Make ui_controls only usable from interactive_ui_tests. This has two benefits:

chrome/test/base/ui_test_utils.cc

 // Copyright (c) 2012 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/test/base/ui_test_utils.h"
 
 #if defined(OS_WIN)
 #include <windows.h>
 #endif
 
@@ skipping 55 matching lines @@
 #include "content/public/test/browser_test_utils.h"
 #include "content/public/test/download_test_observer.h"
 #include "content/public/test/test_navigation_observer.h"
 #include "content/public/test/test_utils.h"
 #include "net/base/net_util.h"
 #include "net/test/python_utils.h"
 #include "third_party/skia/include/core/SkBitmap.h"
 #include "third_party/skia/include/core/SkColor.h"
 #include "ui/gfx/size.h"
 #include "ui/snapshot/snapshot.h"
-#include "ui/ui_controls/ui_controls.h"
 
 #if defined(USE_AURA)
 #include "ash/shell.h"
 #include "ui/aura/root_window.h"
 #endif
 
 using content::BrowserThread;
 using content::DomOperationNotificationDetails;
 using content::NativeWebKeyboardEvent;
 using content::NavigationController;
@@ skipping 577 matching lines @@
   position.longitude = longitude;
   position.altitude = 0.;
   position.accuracy = 0.;
   position.timestamp = base::Time::Now();
   scoped_refptr<content::MessageLoopRunner> runner =
       new content::MessageLoopRunner;
   content::OverrideLocationForTesting(position, runner->QuitClosure());
   runner->Run();
 }
 
-namespace internal {
-
-void ClickTask(ui_controls::MouseButton button,
-               int state,
-               const base::Closure& followup) {
-  if (!followup.is_null())
-    ui_controls::SendMouseEventsNotifyWhenDone(button, state, followup);
-  else
-    ui_controls::SendMouseEvents(button, state);
-}
-
-}  // namespace internal
-
 HistoryEnumerator::HistoryEnumerator(Profile* profile) {
   scoped_refptr<content::MessageLoopRunner> message_loop_runner =
       new content::MessageLoopRunner;
 
   HistoryService* hs = HistoryServiceFactory::GetForProfile(
       profile, Profile::EXPLICIT_ACCESS);
   hs->QueryHistory(
       string16(),
       history::QueryOptions(),
       &consumer_,
       base::Bind(&HistoryEnumerator::HistoryQueryComplete,
                  base::Unretained(this), message_loop_runner->QuitClosure()));
   message_loop_runner->Run();
 }
 
 HistoryEnumerator::~HistoryEnumerator() {}
 
 void HistoryEnumerator::HistoryQueryComplete(
     const base::Closure& quit_task,
     HistoryService::Handle request_handle,
     history::QueryResults* results) {
   for (size_t i = 0; i < results->size(); ++i)
     urls_.push_back((*results)[i].url());
   quit_task.Run();
 }
 
 }  // namespace ui_test_utils