Remove 1 pixel padding around app list main view.

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(0xFA, 0xFA, 0xFA);
 const SkColor kSearchBoxBackground = SK_ColorWHITE;
@@ skipping 62 matching lines @@
 const int kCenteredPreferredRows = 3;
 
 // Preferred number of columns and rows in the experimental app list apps grid.
 const int kExperimentalPreferredCols = 6;
 const int kExperimentalPreferredRows = 4;
 
 // Radius of the circle, in which if entered, show re-order preview.
 const int kReorderDroppingCircleRadius = 35;
 
 // The padding around the outside of the experimental app list (top and sides).
-const int kExperimentalWindowPadding = 23;
+const int kExperimentalWindowPadding = 24;
 
 // Max items allowed in a folder.
 size_t kMaxFolderItems = 16;
 
 // Number of the top items in a folder, which are shown inside the folder icon
 // and animated when opening and closing a folder.
 const size_t kNumFolderTopItems = 4;
 
 // Maximum length of the folder name in chars.
 const size_t kMaxFolderNameChars = 40;
 
 // Font style for app item labels.
 const ui::ResourceBundle::FontStyle kItemTextFontStyle =
     ui::ResourceBundle::SmallBoldFont;
 
 #if defined(OS_LINUX)
 #if defined(GOOGLE_CHROME_BUILD)
 const char kAppListWMClass[] = "chrome_app_list";
 #else  // CHROMIUM_BUILD
 const char kAppListWMClass[] = "chromium_app_list";
 #endif
 #endif
 
 }  // namespace app_list