Expose InlineTextBoxes in the accessibility tree.

Source/core/rendering/RenderText.cpp

Index: Source/core/rendering/RenderText.cpp
diff --git a/Source/core/rendering/RenderText.cpp b/Source/core/rendering/RenderText.cpp
index 0fa574009a11c8299bd977a95d1d9e66e7eb22a4..b53c9695e633e37ab2d9b320dbc9f3f301c97c46 100644
--- a/Source/core/rendering/RenderText.cpp
+++ b/Source/core/rendering/RenderText.cpp
@@ -30,6 +30,7 @@
 #include "core/fetch/TextResourceDecoder.h"
 #include "core/frame/FrameView.h"
 #include "core/page/Settings.h"
+#include "core/rendering/AbstractInlineTextBox.h"
 #include "core/rendering/EllipsisBox.h"
 #include "core/rendering/InlineTextBox.h"
 #include "core/rendering/RenderBlock.h"
@@ -1829,4 +1830,9 @@ void RenderText::momentarilyRevealLastTypedCharacter(unsigned lastTypedCharacter
     secureTextTimer->restartWithNewText(lastTypedCharacterOffset);
 }
 
+PassRefPtr<AbstractInlineTextBox> RenderText::firstAbstractInlineTextBox()
+{
+    return AbstractInlineTextBox::getOrCreate(this, m_firstTextBox);
+}
+
 } // namespace WebCore