WebLocalFrameImpl::selectWordAroundPosition should select a word before space.

Source/core/editing/FrameSelectionTest.cpp

Index: Source/core/editing/FrameSelectionTest.cpp
diff --git a/Source/core/editing/FrameSelectionTest.cpp b/Source/core/editing/FrameSelectionTest.cpp
index 2aea63be379eab58fcfb09c86e29415cfadeeaae..b5ab2ddc8ad8ad4936a4fa6504f999ed4ac6f93f 100644
--- a/Source/core/editing/FrameSelectionTest.cpp
+++ b/Source/core/editing/FrameSelectionTest.cpp
@@ -138,4 +138,25 @@ TEST_F(FrameSelectionTest, PaintCaretShouldNotLayout)
     EXPECT_EQ(startCount, layoutCount());
 }
 
+#define EXPECT_EQ_SELECTED_TEXT(text) \
+    EXPECT_EQ(text, WebString(selection().selectedText()).utf8())
+
+TEST_F(FrameSelectionTest, SelectWordAroundPosition)
+{
+    // "Foo Bar  Baz,"
+    RefPtrWillBeRawPtr<Text> text = document().createTextNode("Foo Bar&nbsp;&nbsp;Baz,");
+    document().body()->appendChild(text);
+    // "Fo|o Bar  Baz,"
+    EXPECT_TRUE(selection().selectWordAroundPosition(VisiblePosition(Position(text, 2))));
+    EXPECT_EQ_SELECTED_TEXT("Foo");
+    // "Foo| Bar  Baz,"
+    EXPECT_TRUE(selection().selectWordAroundPosition(VisiblePosition(Position(text, 3))));
+    EXPECT_EQ_SELECTED_TEXT("Foo");
+    // "Foo Bar | Baz,"
+    EXPECT_FALSE(selection().selectWordAroundPosition(VisiblePosition(Position(text, 13))));
+    // "Foo Bar  Baz|,"
+    EXPECT_TRUE(selection().selectWordAroundPosition(VisiblePosition(Position(text, 22))));
+    EXPECT_EQ_SELECTED_TEXT("Baz");
+}
+
 }