Update apps grid view layout to match latest mocks.

ui/app_list/views/app_list_item_view.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/app_list_item_view.h"
 
 #include <algorithm>
 
 #include "base/profiler/scoped_tracker.h"
 #include "base/strings/utf_string_conversions.h"
@@ skipping 21 matching lines @@
 #include "ui/views/background.h"
 #include "ui/views/controls/image_view.h"
 #include "ui/views/controls/label.h"
 #include "ui/views/controls/menu/menu_runner.h"
 #include "ui/views/drag_controller.h"
 
 namespace app_list {
 
 namespace {
 
-const int kTopPadding = 20;
-const int kIconTitleSpacing = 7;
+const int kTopPadding = 18;
+const int kIconTitleSpacing = 6;
 const int kProgressBarHorizontalPadding = 12;
 
 // Radius of the folder dropping preview circle.
 const int kFolderPreviewRadius = 40;
 
 const int kLeftRightPaddingChars = 1;
 
 // Scale to transform the icon when a drag starts.
 const float kDraggingIconScale = 1.5f;
 
@@ skipping 517 matching lines @@
   SetItemPercentDownloaded(item_weak_->percent_downloaded());
 }
 
 void AppListItemView::ItemBeingDestroyed() {
   DCHECK(item_weak_);
   item_weak_->RemoveObserver(this);
   item_weak_ = NULL;
 }
 
 }  // namespace app_list