Remove Event::system_location

ui/aura/root_window.cc

Index: ui/aura/root_window.cc
diff --git a/ui/aura/root_window.cc b/ui/aura/root_window.cc
index e706ef0a2be1c15c16b0ff5260ff5a5442d1bc92..df9e87918dbbea1c8fc2dca3047208006e2db770 100644
--- a/ui/aura/root_window.cc
+++ b/ui/aura/root_window.cc
@@ -40,6 +40,10 @@
 #include "ui/gfx/screen.h"
 #include "ui/gfx/size_conversions.h"
 
+#if defined(OS_CHROMEOS)
+#include "ui/base/events/event_utils.h"
+#endif
+
 using std::vector;
 
 namespace aura {
@@ -694,14 +698,20 @@ void RootWindow::TransformEventForDeviceScaleFactor(bool keep_inside_root,
   event->UpdateForRootTransform(GetInverseRootTransform());
 #if defined(OS_CHROMEOS)
   const gfx::Rect& root_bounds = bounds();
+  if (!event->native_event())
+    return;
+  const gfx::Point system_location =
+      ui::EventSystemLocationFromNative(event->native_event());
   if (keep_inside_root &
-      host_->GetBounds().Contains(event->system_location()) &&
+      host_->GetBounds().Contains(system_location) &&
       !root_bounds.Contains(event->root_location())) {
     // Make sure that the mouse location inside the host window gets
     // translated inside root window.
     // TODO(oshima): This is (hopefully) short term bandaid to deal
     // with calculation error due to the fact that we rotate in dip
     // coordinates instead of pixels. crbug.com/222483.
+    // When removing this, don't forget to remove the include of the
+    // event_util.h file.
     int x = event->location().x();
     int y = event->location().y();
     x = std::min(std::max(x, root_bounds.x()), root_bounds.right());
@@ -1169,7 +1179,6 @@ void RootWindow::SynthesizeMouseMoveEvent() {
                        host_mouse_location,
                        ui::EF_IS_SYNTHESIZED);
   ConvertPointToNativeScreen(&root_mouse_location);

[sadrul, 2013/04/10 00:12:41]

Is this conversion necessary anymore?

[oshima, 2013/04/10 01:28:01]

doh, you're right. removed.

-  event.set_system_location(root_mouse_location);
   OnHostMouseEvent(&event);
 }