[Aura] Fix HtmlDialogBrowserTest.SizeWindow.

ui/aura_shell/toplevel_window_event_filter.cc

Index: ui/aura_shell/toplevel_window_event_filter.cc
diff --git a/ui/aura_shell/toplevel_window_event_filter.cc b/ui/aura_shell/toplevel_window_event_filter.cc
index e8609b424d4cf150e2538a2d8f992506ac8349df..4da437cf1248901c3b0e995a30c8f70d6acea90a 100644
--- a/ui/aura_shell/toplevel_window_event_filter.cc
+++ b/ui/aura_shell/toplevel_window_event_filter.cc
@@ -261,10 +261,7 @@ gfx::Size ToplevelWindowEventFilter::GetSizeForDrag(
         (size_change_direction & kBoundsChangeDirection_Vertical ?
          y_multiplier * (first_y - second_y) : 0);
 
-    // Enforce minimum window size.
-    const gfx::Size min_size = target->minimum_size();
-    size.SetSize(std::max(width, min_size.width()),
-                 std::max(height, min_size.height()));
+    size.SetSize(width, height);
   }
   return size;
 }