Nix GetRootWindowController, use RootWindowController::ForWindow.

ash/touch/touch_observer_hud_unittest.cc

 // Copyright (c) 2013 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/touch/touch_observer_hud.h"
 
 #include "ash/ash_switches.h"
 #include "ash/root_window_controller.h"
 #include "ash/shell.h"
 #include "ash/test/ash_test_base.h"
@@ skipping 133 matching lines @@
     return GetWindowTreeHostManager()->GetRootWindowForDisplayId(display.id());
   }
 
   aura::Window* GetSecondaryRootWindow() {
     const display::Display& display = display_manager()->GetSecondaryDisplay();
     return GetWindowTreeHostManager()->GetRootWindowForDisplayId(display.id());
   }
 
   RootWindowController* GetInternalRootController() {
     aura::Window* root = GetInternalRootWindow();
-    return GetRootWindowController(root);
+    return RootWindowController::ForWindow(root);
   }
 
   RootWindowController* GetExternalRootController() {
     aura::Window* root = GetExternalRootWindow();
-    return GetRootWindowController(root);
+    return RootWindowController::ForWindow(root);
   }
 
   RootWindowController* GetPrimaryRootController() {
     aura::Window* root = GetPrimaryRootWindow();
-    return GetRootWindowController(root);
+    return RootWindowController::ForWindow(root);
   }
 
   RootWindowController* GetSecondaryRootController() {
     aura::Window* root = GetSecondaryRootWindow();
-    return GetRootWindowController(root);
+    return RootWindowController::ForWindow(root);
   }
 
   display::ManagedDisplayInfo CreateDisplayInfo(int64_t id,
                                                 const gfx::Rect& bounds) {
     display::ManagedDisplayInfo info(id, base::StringPrintf("x-%" PRId64, id),
                                      false);
     info.SetBounds(bounds);
     return info;
   }
 
@@ skipping 385 matching lines @@
 
   SendTouchEventToInternalHud(ui::ET_TOUCH_PRESSED, gfx::Point(10, 10), 1);
   EXPECT_EQ(1, GetInternalTouchPointsCount());
 
   // Disabling projection touch HUD shoud remove it without crashing.
   DisableTouchHudProjection();
   EXPECT_EQ(NULL, GetInternalTouchHudProjection());
 }
 
 }  // namespace ash