Expose InlineTextBoxes in the accessibility tree.

Source/core/accessibility/AXInlineTextBox.h

Index: Source/core/accessibility/AXInlineTextBox.h
diff --git a/Source/core/accessibility/AXTableHeaderContainer.h b/Source/core/accessibility/AXInlineTextBox.h
similarity index 63%
copy from Source/core/accessibility/AXTableHeaderContainer.h
copy to Source/core/accessibility/AXInlineTextBox.h
index 3870aa7d67c027232e35d0e943ef0be39b915afd..b80b558ed4739c34d30468553612b59e9e26d7a9 100644
--- a/Source/core/accessibility/AXTableHeaderContainer.h
+++ b/Source/core/accessibility/AXInlineTextBox.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2008 Apple Inc. All rights reserved.
+ * Copyright (C) 2013, Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
@@ -26,34 +26,43 @@
  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-#ifndef AXTableHeaderContainer_h
-#define AXTableHeaderContainer_h
+#ifndef AXInlineTextBox_h
+#define AXInlineTextBox_h
 
-#include "core/accessibility/AXMockObject.h"
-#include "core/accessibility/AXTable.h"
+#include "core/accessibility/AXObject.h"
+#include "core/rendering/AbstractInlineTextBox.h"
 
 namespace WebCore {
 
-class AXTableHeaderContainer : public AXMockObject {
+class AXInlineTextBox : public AXObject {
 
 private:
-    AXTableHeaderContainer();
+    AXInlineTextBox(PassRefPtr<AbstractInlineTextBox>);
+
 public:
-    static PassRefPtr<AXTableHeaderContainer> create();
-    virtual ~AXTableHeaderContainer();
+    static PassRefPtr<AXInlineTextBox> create(PassRefPtr<AbstractInlineTextBox>);
+    virtual ~AXInlineTextBox();
 
-    virtual AccessibilityRole roleValue() const OVERRIDE { return TableHeaderContainerRole; }
+    virtual void init() OVERRIDE;
+    virtual void detach() OVERRIDE;
 
-    virtual void addChildren() OVERRIDE;
+    void setInlineTextBox(AbstractInlineTextBox* inlineTextBox) { m_inlineTextBox = inlineTextBox; }
 
+    virtual AccessibilityRole roleValue() const OVERRIDE { return InlineTextBoxRole; }
+    virtual String stringValue() const OVERRIDE;
+    virtual void textCharacterOffsets(Vector<int>&) const OVERRIDE;
+    virtual void wordBoundaries(Vector<PlainTextRange>& words) const OVERRIDE;
     virtual LayoutRect elementRect() const OVERRIDE;
+    virtual AXObject* parentObject() const OVERRIDE;
+    virtual AccessibilityTextDirection textDirection() const OVERRIDE;
 
 private:
-    LayoutRect m_headerRect;
+    RefPtr<AbstractInlineTextBox> m_inlineTextBox;
+    AXObjectCache* m_axObjectCache;
 
     virtual bool computeAccessibilityIsIgnored() const OVERRIDE;
 };
 
 } // namespace WebCore
 
-#endif // AXTableHeaderContainer_h
+#endif // AXInlineTextBox_h