UI Updates for OSX App Launcher: truncate titles, window shadow.

ui/app_list/cocoa/apps_grid_view_item.mm

 // Copyright 2013 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.
 
 #import "ui/app_list/cocoa/apps_grid_view_item.h"
 
 #include "base/mac/foundation_util.h"
 #include "base/memory/scoped_nsobject.h"
 #include "base/strings/sys_string_conversions.h"
 #include "skia/ext/skia_utils_mac.h"
@@ skipping 145 matching lines @@
     // This NSButton style always positions the icon at the very top of the
     // button frame. AppsGridViewItem uses an enclosing view so that it is
     // visually correct.
     [prototypeButton setImagePosition:NSImageAbove];
     [prototypeButton setButtonType:NSMomentaryChangeButton];
     [prototypeButton setBordered:NO];
 
     [[prototypeButton cell]
         setFont:ui::ResourceBundle::GetSharedInstance().GetFont(
             app_list::kItemTextFontStyle).GetNativeFont()];
+    [[prototypeButton cell] setLineBreakMode:NSLineBreakByTruncatingTail];
 
     scoped_nsobject<AppsGridItemBackgroundView> prototypeButtonBackground(
         [[AppsGridItemBackgroundView alloc] initWithFrame:NSMakeRect(
             0, 0, tileSize.width, tileSize.height)]);
     [prototypeButtonBackground addSubview:prototypeButton];
     [self setView:prototypeButtonBackground];
   }
   return self;
 }
 
@@ skipping 42 matching lines @@
 - (void)mouseExited:(NSEvent*)theEvent {
   [self setSelected:NO];
 }
 
 - (void)setSelected:(BOOL)flag {
   [[self itemBackgroundView] setSelected:flag];
   [super setSelected:flag];
 }
 
 @end