Fixing remaining VC++ 2015 64-bit build breaks

chrome/browser/hang_monitor/hung_plugin_action.cc

Index: chrome/browser/hang_monitor/hung_plugin_action.cc
diff --git a/chrome/browser/hang_monitor/hung_plugin_action.cc b/chrome/browser/hang_monitor/hung_plugin_action.cc
index 82142862ab0ad00c4cb6474dd4647c88ecf825b0..3029936b5d521c34a4ee72a5e6399202274335b5 100644
--- a/chrome/browser/hang_monitor/hung_plugin_action.cc
+++ b/chrome/browser/hang_monitor/hung_plugin_action.cc
@@ -123,11 +123,11 @@ bool HungPluginAction::OnHungWindowDetected(HWND hung_window,
         // exists. The property is deleted if the window becomes
         // responsive.
         continue_hang_detection = false;
-#pragma warning(disable:4311)
+#pragma warning(disable : 4311 4302)
         int child_window_message_timeout =
             reinterpret_cast<int>(GetProp(
                 hung_window, HungWindowDetector::kHungChildWindowTimeout));
-#pragma warning(default:4311)
+#pragma warning(default : 4311 4302)
         if (child_window_message_timeout) {
           child_window_message_timeout *= 2;
 #pragma warning(disable:4312)