Improve DEFINE_STATIC_LOCAL()'s handling of Blink GCed objects.

third_party/WebKit/Source/core/input/InputDeviceCapabilities.cpp

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "core/input/InputDeviceCapabilities.h"
 
 namespace blink {
 
 InputDeviceCapabilities::InputDeviceCapabilities(bool firesTouchEvents)
 {
     m_firesTouchEvents = firesTouchEvents;
 }
 
 InputDeviceCapabilities::InputDeviceCapabilities(const InputDeviceCapabilitiesInit& initializer)
 {
     m_firesTouchEvents = initializer.firesTouchEvents();
 }
 
 InputDeviceCapabilities::~InputDeviceCapabilities()
 {
 }
 
 InputDeviceCapabilities* InputDeviceCapabilities::firesTouchEventsSourceCapabilities()
 {
-    DEFINE_STATIC_LOCAL(Persistent<InputDeviceCapabilities>, instance, (InputDeviceCapabilities::create(true)));
-    return instance;
+    DEFINE_STATIC_LOCAL(InputDeviceCapabilities, instance, (InputDeviceCapabilities::create(true)));
+    return &instance;
 }
 
 InputDeviceCapabilities* InputDeviceCapabilities::doesntFireTouchEventsSourceCapabilities()
 {
-    DEFINE_STATIC_LOCAL(Persistent<InputDeviceCapabilities>, instance, (InputDeviceCapabilities::create(false)));
-    return instance;
+    DEFINE_STATIC_LOCAL(InputDeviceCapabilities, instance, (InputDeviceCapabilities::create(false)));
+    return &instance;
 }
 
 } // namespace blink