Rename ash desktop_background to wallpaper.

ash/touch/touch_uma.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/touch/touch_uma.h"
 
 #include "ash/common/wm_shell.h"
 #include "base/metrics/histogram.h"
 #include "base/strings/stringprintf.h"
 #include "ui/aura/env.h"
@@ skipping 216 matching lines @@
   if (!window || window->GetRootWindow() == window) {
     if (event.type() == ui::ET_GESTURE_SCROLL_BEGIN)
       return GESTURE_BEZEL_SCROLL;
     if (event.type() == ui::ET_GESTURE_BEGIN)
       return GESTURE_BEZEL_DOWN;
     return GESTURE_UNKNOWN;
   }
 
   std::string name = window ? window->name() : std::string();
 
-  const char kDesktopBackgroundView[] = "DesktopBackgroundView";
-  if (name == kDesktopBackgroundView) {
+  const char kWallpaperView[] = "WallpaperView";
+  if (name == kWallpaperView) {
     if (event.type() == ui::ET_GESTURE_SCROLL_BEGIN)
       return GESTURE_DESKTOP_SCROLL;
     if (event.type() == ui::ET_GESTURE_PINCH_BEGIN)
       return GESTURE_DESKTOP_PINCH;
     return GESTURE_UNKNOWN;
   }
 
   const char kWebPage[] = "RenderWidgetHostViewAura";
   if (name == kWebPage) {
     if (event.type() == ui::ET_GESTURE_PINCH_BEGIN)
@@ skipping 42 matching lines @@
       return GESTURE_OMNIBOX_SCROLL;
     if (event.type() == ui::ET_GESTURE_PINCH_BEGIN)
       return GESTURE_OMNIBOX_PINCH;
     return GESTURE_UNKNOWN;
   }
 
   return GESTURE_UNKNOWN;
 }
 
 }  // namespace ash