ash: ozone: apply transformation to events outside the root window

ash/wm/drag_window_resizer.cc

Index: ash/wm/drag_window_resizer.cc
diff --git a/ash/wm/drag_window_resizer.cc b/ash/wm/drag_window_resizer.cc
index 214dbc5c730c3030b258dace74be5a933d2d7b72..c610465197d05c0cf4a1372812031ece62a41202 100644
--- a/ash/wm/drag_window_resizer.cc
+++ b/ash/wm/drag_window_resizer.cc
@@ -76,6 +76,9 @@ void DragWindowResizer::Drag(const gfx::Point& location, int event_flags) {
   if (!resizer)
     return;
 
+  if (!GetTarget()->HasCapture())
+    GetTarget()->SetCapture();
+
   last_mouse_location_ = location;
   // Show a phantom window for dragging in another root window.
   if (HasSecondaryRootWindow()) {
@@ -103,6 +106,9 @@ void DragWindowResizer::CompleteDrag() {
   const gfx::Display dst_display =
       screen->GetDisplayNearestPoint(last_mouse_location_in_screen);
 
+  if (GetTarget()->HasCapture())
+    GetTarget()->ReleaseCapture();
+
   if (dst_display.id() !=
       screen->GetDisplayNearestWindow(GetTarget()->GetRootWindow()).id()) {
     // Adjust the size and position so that it doesn't exceed the size of
@@ -140,6 +146,9 @@ void DragWindowResizer::RevertDrag() {
 
   drag_window_controller_.reset();
   GetTarget()->layer()->SetOpacity(details().initial_opacity);
+
+  if (GetTarget()->HasCapture())
+    GetTarget()->ReleaseCapture();

[sadrul, 2014/11/24 22:27:04]

DnD and capture is relatively tricky. The changes in this file should be a
separate CL (explaining why this is necessary) with sufficient test coverage.

 }
 
 DragWindowResizer::DragWindowResizer(WindowResizer* next_window_resizer,