Revert 285832 "Disable accessible touch exploration by default."

trunk/src/ash/root_window_controller.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 "ash/root_window_controller.h"
 
 #include <queue>
 #include <vector>
 
 #include "ash/ash_constants.h"
@@ skipping 739 matching lines @@
 
     // Create a shelf if a user is already logged in.
     if (shell->session_state_delegate()->NumberOfLoggedInUsers())
       shelf()->CreateShelf();
 
     // Notify shell observers about new root window.
     shell->OnRootWindowAdded(root_window);
   }
 
 #if defined(OS_CHROMEOS)
-  if (CommandLine::ForCurrentProcess()->HasSwitch(
-          switches::kAshEnableTouchExplorationMode)) {
+  if (!CommandLine::ForCurrentProcess()->HasSwitch(
+          switches::kAshDisableTouchExplorationMode)) {
     touch_exploration_manager_.reset(new AshTouchExplorationManager(this));
   }
 #endif
 }
 
 void RootWindowController::InitLayoutManagers() {
   aura::Window* root_window = GetRootWindow();
   root_window_layout_ = new RootWindowLayoutManager(root_window);
   root_window->SetLayoutManager(root_window_layout_);
 
@@ skipping 311 matching lines @@
   else
     DisableTouchHudProjection();
 }
 
 RootWindowController* GetRootWindowController(
     const aura::Window* root_window) {
   return root_window ? GetRootWindowSettings(root_window)->controller : NULL;
 }
 
 }  // namespace ash