Fixed IAccessibleText::TextAtOffset with IA2_TEXT_BOUNDARY_WORD to return text that spans from the …

content/browser/accessibility/browser_accessibility_win.h

Index: content/browser/accessibility/browser_accessibility_win.h
diff --git a/content/browser/accessibility/browser_accessibility_win.h b/content/browser/accessibility/browser_accessibility_win.h
index 1f47d7af4c158a52478bbe5fa7c9c34c40fdd9b0..a885c511c8fc386a35c165af797952b5297d2c2c 100644
--- a/content/browser/accessibility/browser_accessibility_win.h
+++ b/content/browser/accessibility/browser_accessibility_win.h
@@ -833,6 +833,12 @@ BrowserAccessibilityWin
                     LONG start_offset,
                     ui::TextBoundaryDirection direction);
 
+  // Searches in the given text and from the given offset until the start of
+  // the next or previous word is found and returns its position.
+  LONG FindWordStartBoundary(const base::string16& text,
+                             LONG start_offset,
+                             ui::TextBoundaryDirection direction);
+
   // Return a pointer to the object corresponding to the given id,
   // does not make a new reference.
   BrowserAccessibilityWin* GetFromID(int32 id);