Plumb hasPreciseScrollingDeltas into ScrollGranularity for overflow scrolls.

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 788 matching lines @@
     FrameTestHelpers::WebViewHelper webViewHelper;
     WebViewImpl* webViewImpl = webViewHelper.initializeAndLoad(baseURL + fileName, true);
     int pageWidth = 640;
     int pageHeight = 480;
     webViewImpl->resize(WebSize(pageWidth, pageHeight));
     webViewImpl->layout();
 
     RefPtrWillBeRawPtr<Document> document = toLocalFrame(webViewImpl->page()->mainFrame())->document();
     RefPtrWillBeRawPtr<WheelEvent> event = WheelEvent::create(FloatPoint(1, 3), FloatPoint(5, 10),
         WheelEvent::DOM_DELTA_PAGE, document.get()->domWindow(),  IntPoint(2, 6), IntPoint(10, 30),
-        true, false, false, false, 0, true);
+        true, false, false, false, 0, true, true);
     WebMouseWheelEventBuilder webMouseWheel(toLocalFrame(webViewImpl->page()->mainFrame())->view(), document.get()->renderView(), *event);
     EXPECT_EQ(1, webMouseWheel.wheelTicksX);
     EXPECT_EQ(3, webMouseWheel.wheelTicksY);
     EXPECT_EQ(5, webMouseWheel.deltaX);
     EXPECT_EQ(10, webMouseWheel.deltaY);
     EXPECT_EQ(2, webMouseWheel.globalX);
     EXPECT_EQ(6, webMouseWheel.globalY);
     EXPECT_EQ(10, webMouseWheel.windowX);
     EXPECT_EQ(30, webMouseWheel.windowY);
     EXPECT_TRUE(webMouseWheel.scrollByPage);
@@ skipping 32 matching lines @@
         EXPECT_EQ(5, platformWheelBuilder.position().y());
         EXPECT_EQ(10, platformWheelBuilder.deltaX());
         EXPECT_EQ(15, platformWheelBuilder.deltaY());
         EXPECT_EQ(WebInputEvent::ControlKey, platformWheelBuilder.modifiers());
         EXPECT_TRUE(platformWheelBuilder.hasPreciseScrollingDeltas());
         EXPECT_TRUE(platformWheelBuilder.canScroll());
     }
 }
 
 } // anonymous namespace