Update apps grid view layout to match latest mocks.

ui/app_list/views/page_switcher.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/views/page_switcher.h"
 
 #include <algorithm>
 
 #include "third_party/skia/include/core/SkPath.h"
 #include "ui/app_list/app_list_constants.h"
 #include "ui/app_list/pagination_model.h"
 #include "ui/base/ui_base_switches_util.h"
 #include "ui/gfx/animation/throb_animation.h"
 #include "ui/gfx/canvas.h"
 #include "ui/gfx/skia_util.h"
 #include "ui/views/controls/button/custom_button.h"
 #include "ui/views/layout/box_layout.h"
 
 namespace app_list {
 
 namespace {
 
-const int kPreferredHeight = 57;
+const int kPreferredHeight = 58;
 
 const int kMaxButtonSpacing = 18;
 const int kMinButtonSpacing = 4;
 const int kMaxButtonWidth = 68;
 const int kMinButtonWidth = 28;
 const int kButtonHeight = 6;
 const int kButtonCornerRadius = 2;
 const int kButtonStripPadding = 20;
 
 class PageSwitcherButton : public views::CustomButton {
@@ skipping 239 matching lines @@
     remaining = -remaining;
     progress = -progress;
   }
 
   GetButtonByIndex(buttons_, current_page)->SetSelectedRange(remaining);
   if (model_->is_valid_page(target_page))
     GetButtonByIndex(buttons_, target_page)->SetSelectedRange(progress);
 }
 
 }  // namespace app_list