Use app list item shadow for app list folders.

ui/app_list/app_list_constants.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 "ui/app_list/app_list_constants.h"
 
 namespace app_list {
 
 const SkColor kContentsBackgroundColor = SkColorSetRGB(0xF2, 0xF2, 0xF2);
 const SkColor kSearchBoxBackground = SK_ColorWHITE;
@@ skipping 30 matching lines @@
 
 const SkColor kGridTitleColor = SkColorSetRGB(0x33, 0x33, 0x33);
 
 const SkColor kFolderTitleColor = SkColorSetRGB(0x33, 0x33, 0x33);
 const SkColor kFolderTitleHintTextColor = SkColorSetRGB(0xA0, 0xA0, 0xA0);
 // Color of the folder ink bubble.
 const SkColor kFolderBubbleColor = SK_ColorWHITE;
 // Color of the folder bubble shadow.
 const SkColor kFolderShadowColor = SkColorSetRGB(0xBF, 0xBF, 0xBF);
 const float kFolderBubbleRadius = 23;
-const float kFolderShadowRadius = 23.5;
-const float kFolderShadowOffsetY = 1;
+const float kFolderBubbleOffsetY = 1;
 
 const SkColor kCardBackgroundColor = SK_ColorWHITE;
 
 // Duration in milliseconds for page transition.
 const int kPageTransitionDurationInMs = 180;
 
 // Duration in milliseconds for over scroll page transition.
 const int kOverscrollPageTransitionDurationMs = 50;
 
 // Duration in milliseconds for fading in the target page when opening
@@ skipping 94 matching lines @@
       return gfx::ShadowValue(gfx::Vector2d(0, 2), 4,
                               SkColorSetARGB(0x33, 0, 0, 0));
     default:
       return gfx::ShadowValue(gfx::Vector2d(0, 8), 12,
                               SkColorSetARGB(0x3F, 0, 0, 0));
   }
 }
 
 const gfx::ShadowValues& IconStartShadows() {
   CR_DEFINE_STATIC_LOCAL(const gfx::ShadowValues, icon_shadows,
-                         (1, gfx::ShadowValue(gfx::Vector2d(0, 2), 2,
-                                              SkColorSetARGB(0x24, 0, 0, 0))));
+                         (1, gfx::ShadowValue(gfx::Vector2d(0, 1), 2,
+                                              SkColorSetARGB(0x33, 0, 0, 0))));
   return icon_shadows;
 }
 
 const gfx::ShadowValues& IconEndShadows() {
   CR_DEFINE_STATIC_LOCAL(const gfx::ShadowValues, icon_shadows,
                          (1, gfx::ShadowValue(gfx::Vector2d(0, 4), 4,
                                               SkColorSetARGB(0x50, 0, 0, 0))));
   return icon_shadows;
 }
 
 }  // namespace app_list