Support accessible inline text boxes.

content/common/accessibility_node_data.h

Index: content/common/accessibility_node_data.h
diff --git a/content/common/accessibility_node_data.h b/content/common/accessibility_node_data.h
index 34e93479c6a6891cc89d114719591790f5ca3907..a5d9c09d7179b858710353cdcc7b169b669b6404 100644
--- a/content/common/accessibility_node_data.h
+++ b/content/common/accessibility_node_data.h
@@ -88,7 +88,10 @@ struct CONTENT_EXPORT AccessibilityNodeData {
     // Color value for WebKit::WebAXRoleColorWell, each component is 0..255
     ATTR_COLOR_VALUE_RED,
     ATTR_COLOR_VALUE_GREEN,
-    ATTR_COLOR_VALUE_BLUE
+    ATTR_COLOR_VALUE_BLUE,
+
+    // Inline text attributes.
+    ATTR_TEXT_DIRECTION
   };
 
   enum FloatAttribute {
@@ -145,7 +148,14 @@ struct CONTENT_EXPORT AccessibilityNodeData {
 
     // For a table, the unique cell ids in row-major order of their first
     // occurrence.
-    ATTR_UNIQUE_CELL_IDS
+    ATTR_UNIQUE_CELL_IDS,
+
+    // For inline text.
+    ATTR_CHARACTER_OFFSETS,
+
+    // For inline text.

[David Tseng, 2013/10/17 22:56:29]

These attributes are not very obvious; perhaps add a little more detail about
what they are.

[dmazzoni, 2013/10/21 17:26:57]

Done.

+    ATTR_WORD_STARTS,
+    ATTR_WORD_ENDS,
   };
 
   AccessibilityNodeData();
@@ -159,9 +169,11 @@ struct CONTENT_EXPORT AccessibilityNodeData {
   void AddIntListAttribute(IntListAttribute attribute,
                            const std::vector<int32>& value);
 
-  // Convenience function, mainly for writing unit tests.
+  // Convenience functions, mainly for writing unit tests.
   // Equivalent to AddStringAttribute(ATTR_NAME, name).
   void SetName(std::string name);
+  // Equivalent to AddStringAttribute(ATTR_VALUE, value).
+  void SetValue(std::string value);
 
   #ifndef NDEBUG
   virtual std::string DebugString(bool recursive) const;