Animate showing / hiding the location bar for bookmark apps.

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

Index: chrome/browser/ui/views/toolbar/toolbar_view.cc
diff --git a/chrome/browser/ui/views/toolbar/toolbar_view.cc b/chrome/browser/ui/views/toolbar/toolbar_view.cc
index 7c743394e3e3d22b9d3e7013be9f1082822d0491..4a725f7a69e795446421217c7e846e4f2b4dee8f 100644
--- a/chrome/browser/ui/views/toolbar/toolbar_view.cc
+++ b/chrome/browser/ui/views/toolbar/toolbar_view.cc
@@ -739,6 +739,13 @@ gfx::Size ToolbarView::SizeForContentSize(gfx::Size size) const {
         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;