Touch.identifier should be long, not unsigned long

Source/web/tests/WebInputEventConversionTest.cpp

 /*
  * Copyright (C) 2012 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 201 matching lines @@
         EXPECT_EQ(WebTouchPoint::StateCancelled, webTouchBuilder.touches[0].state);
         EXPECT_EQ(WebTouchPoint::StateCancelled, webTouchBuilder.touches[1].state);
         EXPECT_EQ(p0.id, webTouchBuilder.touches[0].id);
         EXPECT_EQ(p1.id, webTouchBuilder.touches[1].id);
     }
 
     // Test max point limit.
     {
         RefPtrWillBeRawPtr<TouchList> touchList = TouchList::create();
         RefPtrWillBeRawPtr<TouchList> changedTouchList = TouchList::create();
-        for (unsigned i = 0; i <= static_cast<unsigned>(WebTouchEvent::touchesLengthCap) * 2; ++i) {
+        for (int i = 0; i <= static_cast<int>(WebTouchEvent::touchesLengthCap) * 2; ++i) {
             RefPtrWillBeRawPtr<Touch> touch = Touch::create(toLocalFrame(webViewImpl->page()->mainFrame()), document.get(), i, p0.screenPosition, p0.position, FloatSize(p0.radiusX, p0.radiusY), p0.rotationAngle, p0.force);
             touchList->append(touch);
             changedTouchList->append(touch);
         }
         RefPtrWillBeRawPtr<TouchEvent> touchEvent = TouchEvent::create(touchList.get(), touchList.get(), touchList.get(), EventTypeNames::touchstart, domWindow, false, false, false, false, false, false);
 
         WebTouchEventBuilder webTouchBuilder(documentLayoutView, *touchEvent);
         ASSERT_EQ(static_cast<unsigned>(WebTouchEvent::touchesLengthCap), webTouchBuilder.touchesLength);
     }
 }
@@ skipping 701 matching lines @@
         EXPECT_EQ(15, platformWheelBuilder.deltaX());
         EXPECT_EQ(10, platformWheelBuilder.deltaY());
         EXPECT_EQ(PlatformEvent::AltKey, platformWheelBuilder.modifiers());
         EXPECT_TRUE(platformWheelBuilder.hasPreciseScrollingDeltas());
         EXPECT_FALSE(platformWheelBuilder.canScroll());
         EXPECT_EQ(platformWheelBuilder.railsMode(), PlatformEvent::RailsModeVertical);
     }
 }
 
 } // anonymous namespace