Fix initial hiding and centering cursor on Ozone

ui/aura/env.cc

Index: ui/aura/env.cc
diff --git a/ui/aura/env.cc b/ui/aura/env.cc
index d205ae9827ad208a91fbcad11746b3cf7c442d30..f3414648aa4c05ddf58cec18ec45202f693bd5a5 100644
--- a/ui/aura/env.cc
+++ b/ui/aura/env.cc
@@ -60,11 +60,19 @@ bool Env::IsMouseButtonDown() const {
       mouse_button_flags_ != 0;
 }
 
+void Env::SetLastMouseLocation(const gfx::Point& last_mouse_location) {
+  if (last_mouse_location_ != last_mouse_location)
+    mouse_moved_ = true;
+
+  last_mouse_location_ = last_mouse_location;
+}
+
 ////////////////////////////////////////////////////////////////////////////////
 // Env, private:
 
 Env::Env()
-    : mouse_button_flags_(0),
+    : mouse_moved_(false),
+      mouse_button_flags_(0),
       is_touch_down_(false),
       input_state_lookup_(InputStateLookup::Create().Pass()),
       context_factory_(NULL) {