Fix tab drag and drop with hi-dpi.

chrome/browser/ui/views/tabs/tab_drag_controller.h

Index: chrome/browser/ui/views/tabs/tab_drag_controller.h
diff --git a/chrome/browser/ui/views/tabs/tab_drag_controller.h b/chrome/browser/ui/views/tabs/tab_drag_controller.h
index bb2412a30bb0001921f24211dc54de2eac67d9f2..14df5777aa5713e5e109b32eb549cc299c27516f 100644
--- a/chrome/browser/ui/views/tabs/tab_drag_controller.h
+++ b/chrome/browser/ui/views/tabs/tab_drag_controller.h
@@ -444,7 +444,7 @@ class TabDragController : public content::NotificationObserver,
 
   // Returns the NativeWindow at the specified point. If |exclude_dragged_view|
   // is true, then the dragged view is not considered.
-  gfx::NativeWindow GetLocalProcessWindow(const gfx::Point& screen_point,
+  gfx::NativeWindow GetLocalProcessWindow(gfx::Point screen_point,

[sadrul, 2015/03/20 17:40:24]

Why this change?

[stapelberg, 2015/03/20 21:48:06]

It saved a conditional branch by overwriting the screen_point variable. But this
reverted now anyway :).

                                           bool exclude_dragged_view);
 
   // Handles registering for notifications.