Do not set the mouse event handler if Widget::SetCapture() fails

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

Index: chrome/browser/ui/views/tabs/tab_drag_controller.cc
diff --git a/chrome/browser/ui/views/tabs/tab_drag_controller.cc b/chrome/browser/ui/views/tabs/tab_drag_controller.cc
index 87b6ccff79c676afa757e0706c2b2402a5d14a88..5c1dd0780a7b4355b42f01873a52cc924afc8a89 100644
--- a/chrome/browser/ui/views/tabs/tab_drag_controller.cc
+++ b/chrome/browser/ui/views/tabs/tab_drag_controller.cc
@@ -915,12 +915,6 @@ void TabDragController::Attach(TabStrip* attached_tabstrip,
   // drag isn't prematurely canceled.
   attached_tabstrip_->GetWidget()->SetCapture(attached_tabstrip_);
   attached_tabstrip_->OwnDragController(this);
-
-  // Redirect all mouse events to the TabStrip so that the tab that originated
-  // the drag can safely be deleted.
-  static_cast<views::internal::RootView*>(
-      attached_tabstrip_->GetWidget()->GetRootView())->SetMouseHandler(
-          attached_tabstrip_);

[pkotwicz, 2014/07/16 18:50:11]

This call was added a prior date to
attached_tabstrip_->GetWidget()->SetCapture() being added.

 }
 
 void TabDragController::Detach(ReleaseCapture release_capture) {