WebLocalFrameImpl::selectWordAroundPosition should select a word before space.

Source/core/editing/FrameSelectionTest.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 "config.h"
 #include "core/editing/FrameSelection.h"
 
 #include "bindings/core/v8/ExceptionStatePlaceholder.h"
 #include "core/dom/Document.h"
 #include "core/dom/Element.h"
@@ skipping 120 matching lines @@
         FrameView& frameView = dummyPageHolder().frameView();
         IntRect frameRect = frameView.frameRect();
         frameRect.setWidth(frameRect.width() + 1);
         frameRect.setHeight(frameRect.height() + 1);
         dummyPageHolder().frameView().setFrameRect(frameRect);
     }
     selection().paintCaret(nullptr, LayoutPoint(), LayoutRect());
     EXPECT_EQ(startCount, layoutCount());
 }
 
+TEST_F(FrameSelectionTest, SelectWordAroundPosition)
+{
+    RefPtrWillBeRawPtr<Text> text = document().createTextNode("Hello World!");
+    document().body()->appendChild(text);
+    selection().selectWordAroundPosition(VisiblePosition(Position(text, 5)));
+    EXPECT_EQ("Hello", WebString(selection().selectedText()).utf8());
 }
+
+}