Make EventHandler to use VisibleSelection::toNormalizedEphemeralRange() instead of toNormalizedRange

Source/core/input/EventHandlerTest.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 "config.h"
 #include "core/input/EventHandler.h"
 
 #include "core/dom/Document.h"
 #include "core/dom/Range.h"
 #include "core/editing/FrameSelection.h"
@@ skipping 74 matching lines @@
         IntPoint(200, 250),
         LeftButton,
         PlatformEvent::MouseReleased,
         1,
         static_cast<PlatformEvent::Modifiers>(0),
         WTF::currentTime());
     document().frame()->eventHandler().handleMouseReleaseEvent(mouseUpEvent);
 
     FrameSelection& selection = document().frame()->selection();
     ASSERT_TRUE(selection.isRange());
-    RefPtrWillBeRawPtr<Range> range = selection.toNormalizedRange();
+    RefPtrWillBeRawPtr<Range> range = createRange(selection.selection().toNormalizedEphemeralRange());
     ASSERT_TRUE(range.get());
     EXPECT_EQ("Line 1\nLine 2", range->text());
 }
 
 } // namespace blink