alternate ntp: clip middle omnibox when resizing browser window

chrome/browser/ui/views/location_bar/location_bar_container_aura.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 "chrome/browser/ui/views/location_bar/location_bar_container.h"
 
 #include "chrome/browser/ui/views/location_bar/location_bar_view.h"
 
 void LocationBarContainer::SetInToolbar(bool in_toolbar) {
   if (animator_.IsAnimating())
     animator_.Cancel();
   // See comment in PlatformInit() as to why we do this.
   SetPaintToLayer(!in_toolbar);
   if (!in_toolbar) {
     layer()->SetFillsBoundsOpaquely(false);
+    // Allows clipping of children.

[sky, 2012/09/13 19:58:24]

This comment duplicates what the code is doing. Instead say why we need this.
Maybe something like: the LocationBarView may be taller than us (otherwise the
text gets squished in weird ways). To allow the LocationBarView to be taller yet
clipped to our bounds we explicitly turn on clipping.

[kuan, 2012/09/13 20:13:28]

Done.

+    layer()->SetMasksToBounds(true);
     StackAtTop();
   }
 }
 
 void LocationBarContainer::OnFocus() {
 }
 
 void LocationBarContainer::PlatformInit() {
   view_parent_ = this;
   // Ideally we would turn on layer painting here, but this poses problems with
   // infobar arrows. So, instead we turn on the layer when animating and turn it
   // off when done.
 }
 
 // static
 SkColor LocationBarContainer::GetBackgroundColor() {
   return instant_extended_api_enabled_ ?
       SK_ColorWHITE :
       LocationBarView::kOmniboxBackgroundColor;
 }
 
 void LocationBarContainer::StackAtTop() {
   // TODO: this is hack. The problem is NativeViewHostAura does an AddChild(),
   // which places its layer at the top of the stack.
   if (layer())
     layer()->parent()->StackAtTop(layer());
 }