Fix black titlebar rendering when toggling DWM when the window is maximized:...

chrome/views/non_client_view.cc

Index: chrome/views/non_client_view.cc
===================================================================
--- chrome/views/non_client_view.cc	(revision 11361)
+++ chrome/views/non_client_view.cc	(working copy)
@@ -66,6 +66,13 @@
   GetWindowPlacement(frame_->GetHWND(), &saved_window_placement);
   frame_->Hide();
 
+  // Important (and ugly) step: restore the window first, since our hiding hack
+  // doesn't work for maximized windows! We tell the frame not to allow itself
+  // to be made visible though, which removes the brief flicker.
+  frame_->set_force_hidden(true);
+  ShowWindow(frame_->GetHWND(), SW_RESTORE);
+  frame_->set_force_hidden(false);
+  
   SetUseNativeFrame(win_util::ShouldUseVistaFrame());
 
   // Now that we've updated the frame, we'll want to restore our saved placement