Plumb gesture source value through Blink.

third_party/WebKit/Source/web/tests/WebFrameTest.cpp

 /*
  * Copyright (C) 2010 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 1583 matching lines @@
 
     IntPoint hitPoint = IntPoint(30, 30); // button size is 100x100
 
     WebLocalFrameImpl* frame = toWebLocalFrameImpl(webViewHelper.webView()->mainFrame());
     Document* document = frame->frame()->document();
     Element* element = document->getElementById("tap_button");
 
     ASSERT_NE(nullptr, element);
     EXPECT_EQ(String("oldValue"), element->innerText());
 
-    PlatformGestureEvent gestureEvent(PlatformEvent::Type::GestureTap, hitPoint, hitPoint, IntSize(0, 0), 0, PlatformEvent::NoModifiers);
+    PlatformGestureEvent gestureEvent(PlatformEvent::Type::GestureTap, hitPoint, hitPoint, IntSize(0, 0), 0, PlatformEvent::NoModifiers, PlatformGestureSourceUninitialized);

[tdresser, 2015/10/14 15:14:20]

Let's not use uninitialized.

[wjmaclean, 2015/10/14 15:55:09]

Done.

     webViewHelper.webViewImpl()->mainFrameImpl()->frame()->eventHandler().handleGestureEvent(gestureEvent);
     // when pressed, the button changes its own text to "updatedValue"
     EXPECT_EQ(String("updatedValue"), element->innerText());
 }
 
 TEST_P(ParameterizedWebFrameTest, SetForceZeroLayoutHeightWorksAcrossNavigations)
 {
     UseMockScrollbarSettings mockScrollbarSettings;
     registerMockedHttpURLLoad("200-by-300.html");
     registerMockedHttpURLLoad("large-div.html");
@@ skipping 6635 matching lines @@
     EXPECT_TRUE(resource);
     EXPECT_NE(0, resource->loadFinishTime());
 
     DocumentLoader* loader = document->loader();
 
     EXPECT_TRUE(loader);
     EXPECT_EQ(loader->timing().responseEnd(), resource->loadFinishTime());
 }
 
 } // namespace blink