Oilpan: Remove most WillBe types from the code base

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

 // Copyright 2014 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/frame/VisualViewport.h"
 
 #include "core/dom/Document.h"
 #include "core/frame/FrameHost.h"
 #include "core/frame/FrameView.h"
 #include "core/frame/LocalFrame.h"
@@ skipping 891 matching lines @@
 
     FrameView* frameView = webViewImpl()->mainFrameImpl()->frameView();
     frameView->layoutViewportScrollableArea()->setScrollPosition(IntPoint(0, 1000), ProgrammaticScroll);
 
     EXPECT_SIZE_EQ(IntSize(1000, 1000), frameView->frameRect().size());
 
     VisualViewport& visualViewport = frame()->page()->frameHost().visualViewport();
     visualViewport.setScale(2);
     visualViewport.setLocation(FloatPoint(350, 350));
 
-    RefPtrWillBePersistent<HistoryItem> firstItem = webViewImpl()->mainFrameImpl()->frame()->loader().currentItem();
+    Persistent<HistoryItem> firstItem = webViewImpl()->mainFrameImpl()->frame()->loader().currentItem();
     EXPECT_POINT_EQ(IntPoint(0, 1000), firstItem->scrollPoint());
 
     // Now navigate to a page which causes a smaller frameView. Make sure that
     // navigating doesn't cause the history item to set a new scroll offset
     // before the item was replaced.
     navigateTo("about:blank");
     frameView = webViewImpl()->mainFrameImpl()->frameView();
 
     EXPECT_NE(firstItem, webViewImpl()->mainFrameImpl()->frame()->loader().currentItem());
     EXPECT_LT(frameView->frameRect().size().width(), 1000);
@@ skipping 692 matching lines @@
     webViewImpl()->handleInputEvent(pinchUpdate);
 
     VisualViewport& visualViewport = webViewImpl()->page()->frameHost().visualViewport();
     FrameView& frameView = *webViewImpl()->mainFrameImpl()->frameView();
 
     EXPECT_FLOAT_POINT_EQ(FloatPoint(50, 50), visualViewport.location());
     EXPECT_FLOAT_POINT_EQ(FloatPoint(0, 0), frameView.scrollPositionDouble());
 }
 
 } // namespace