Revert of Avoids releasing capture in EndMoveLoop if capture was switched to another window while ..

ui/views/widget/desktop_aura/x11_whole_screen_move_loop.cc

Index: ui/views/widget/desktop_aura/x11_whole_screen_move_loop.cc
diff --git a/ui/views/widget/desktop_aura/x11_whole_screen_move_loop.cc b/ui/views/widget/desktop_aura/x11_whole_screen_move_loop.cc
index 6c0b3c6b9e7962b9c3410a2a6916458ee80179f8..1db4a2226ef5bbe561958d839092029211a053d2 100644
--- a/ui/views/widget/desktop_aura/x11_whole_screen_move_loop.cc
+++ b/ui/views/widget/desktop_aura/x11_whole_screen_move_loop.cc
@@ -62,7 +62,6 @@
       should_reset_mouse_flags_(false),
       grab_input_window_(None),
       canceled_(false),
-      has_grab_(false),
       weak_factory_(this) {
   last_xmotion_.type = LASTEvent;
 }
@@ -135,11 +134,6 @@
         EndMoveLoop();
         return ui::POST_DISPATCH_NONE;
       }
-      break;
-    }
-    case FocusOut: {
-      if (xev->xfocus.mode != NotifyGrab)
-        has_grab_ = false;
       break;
     }
     case GenericEvent: {
@@ -259,11 +253,8 @@
 
   // Ungrab before we let go of the window.
   XDisplay* display = gfx::GetXDisplay();
-  // Only ungrab pointer if capture was not switched to another window.
-  if (has_grab_) {
-    XUngrabPointer(display, CurrentTime);
-    XUngrabKeyboard(display, CurrentTime);
-  }
+  XUngrabPointer(display, CurrentTime);
+  XUngrabKeyboard(display, CurrentTime);
 
   // Restore the previous dispatcher.
   nested_dispatcher_.reset();
@@ -304,7 +295,6 @@
     DLOG(ERROR) << "Grabbing pointer for dragging failed: "
                 << ui::GetX11ErrorString(display, ret);
   } else {
-    has_grab_ = true;
     XUngrabKeyboard(display, CurrentTime);
     ret = XGrabKeyboard(
         display,