Fixed algorithms that compute bounding rectangles and word start offsets to take into account IA2 h…

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 18924ac2f6eccd0fa8ba83b5bc95b92c2d40963f..7b1828012ec2ec6c9d248c01605d1c8444d910dd 100644
--- a/content/browser/accessibility/browser_accessibility_win.h
+++ b/content/browser/accessibility/browser_accessibility_win.h
@@ -725,7 +725,7 @@ BrowserAccessibilityWin
   base::string16 name() const { return win_attributes_->name; }
   base::string16 description() const { return win_attributes_->description; }
   base::string16 value() const { return win_attributes_->value; }
-  base::string16 hypertext() const { return win_attributes_->hypertext; }
+  base::string16 GetText() const override;
   std::map<int32_t, int32_t>& hyperlink_offset_to_index() const {
     return win_attributes_->hyperlink_offset_to_index;
   }