Animate showing / hiding the location bar for bookmark apps.

chrome/browser/ui/views/toolbar/toolbar_view.cc

 // 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.
 
 #include "chrome/browser/ui/views/toolbar/toolbar_view.h"
 
 #include <algorithm>
 
 #include "base/command_line.h"
 #include "base/i18n/number_formatting.h"
@@ skipping 721 matching lines @@
   return GetWidget()->ShouldWindowContentsBeTransparent() ?
       0 : kPopupTopSpacingNonGlass;
 }
 
 gfx::Size ToolbarView::SizeForContentSize(gfx::Size size) const {
   if (is_display_mode_normal()) {
     gfx::ImageSkia* normal_background =
         GetThemeProvider()->GetImageSkiaNamed(IDR_CONTENT_TOP_CENTER);
     size.SetToMax(
         gfx::Size(0, normal_background->height() - content_shadow_height()));
+  } else if (size.height() == 0) {
+    // Location mode with a 0 height location bar. If on ash, expand by one
+    // pixel to show a border in the title bar, otherwise leave the size as zero
+    // height.
+    const int kAshBorderSpacing = 1;
+    if (browser_->host_desktop_type() == chrome::HOST_DESKTOP_TYPE_ASH)
+      size.Enlarge(0, kAshBorderSpacing);
   } else {
     const int kPopupBottomSpacingGlass = 1;
     const int kPopupBottomSpacingNonGlass = 2;
     size.Enlarge(
         0,
         PopupTopSpacing() + (GetWidget()->ShouldWindowContentsBeTransparent() ?
             kPopupBottomSpacingGlass : kPopupBottomSpacingNonGlass));
   }
   return size;
 }
@@ skipping 34 matching lines @@
 
 void ToolbarView::OnShowHomeButtonChanged() {
   Layout();
   SchedulePaint();
 }
 
 int ToolbarView::content_shadow_height() const {
   return browser_->host_desktop_type() == chrome::HOST_DESKTOP_TYPE_ASH ?
       kContentShadowHeightAsh : kContentShadowHeight;
 }