Linux Aura: Hide title bar when browser windows are maximized on Unity.

chrome/browser/ui/views/frame/opaque_browser_frame_view.cc

Index: chrome/browser/ui/views/frame/opaque_browser_frame_view.cc
diff --git a/chrome/browser/ui/views/frame/opaque_browser_frame_view.cc b/chrome/browser/ui/views/frame/opaque_browser_frame_view.cc
index f3ae9d8fb1fb6e5b9c7713930bd9ce4c11cc5d75..19ad04299e523b4456ea48419dfa68b213a8b27f 100644
--- a/chrome/browser/ui/views/frame/opaque_browser_frame_view.cc
+++ b/chrome/browser/ui/views/frame/opaque_browser_frame_view.cc
@@ -428,6 +428,9 @@ void OpaqueBrowserFrameView::Observe(
 
 bool OpaqueBrowserFrameView::ShouldShowWindowIcon() const {
   views::WidgetDelegate* delegate = frame()->widget_delegate();
+  // ShouldShowTitleBar defaults to true.
+  if (platform_observer_ && !platform_observer_->ShouldShowTitleBar())
+    return false;
   return delegate && delegate->ShouldShowWindowIcon();
 }
 
@@ -436,6 +439,9 @@ bool OpaqueBrowserFrameView::ShouldShowWindowTitle() const {
   // a window is being destroyed.
   // See more discussion at http://crosbug.com/8958
   views::WidgetDelegate* delegate = frame()->widget_delegate();
+  // ShouldShowTitleBar defaults to true.
+  if (platform_observer_ && !platform_observer_->ShouldShowTitleBar())
+    return false;
   return delegate && delegate->ShouldShowWindowTitle();
 }