Clean up accessibility enums for use in Chromium.

Source/core/editing/AppendNodeCommand.cpp

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 #include "config.h"
 #include "core/editing/AppendNodeCommand.h"
 
 #include "bindings/v8/ExceptionState.h"
-#include "core/accessibility/AXObjectCache.h"
 #include "core/dom/Document.h"
 
 namespace WebCore {
 
 AppendNodeCommand::AppendNodeCommand(PassRefPtr<ContainerNode> parent, PassRefPtr<Node> node)
     : SimpleEditCommand(parent->document())
     , m_parent(parent)
     , m_node(node)
 {
     ASSERT(m_parent);
     ASSERT(m_node);
     ASSERT(!m_node->parentNode());
 
     ASSERT(m_parent->rendererIsEditable() || !m_parent->attached());
 }
 
-static void sendAXTextChangedIgnoringLineBreaks(Node* node, AXObjectCache::AXTextChange textChange)

[aboxhall, 2013/08/07 15:58:10]

Why don't we need to special case text changes any more?

[dmazzoni, 2013/08/07 16:23:53]

We never used them in Chromium. In WebKit, it looks like they
were only used for ATK, and I think we can reconstruct the
information we need on the browser side. I'm deleting them now
because the names of the enums conflicted.

-{
-    String nodeValue = node->nodeValue();
-    // Don't consider linebreaks in this command
-    if (nodeValue == "\n")
-      return;
-
-    if (AXObjectCache* cache = node->document()->existingAXObjectCache())
-        cache->nodeTextChangeNotification(node, textChange, 0, nodeValue);
-}
-
 void AppendNodeCommand::doApply()
 {
     if (!m_parent->rendererIsEditable() && m_parent->attached())
         return;
 
     m_parent->appendChild(m_node.get(), IGNORE_EXCEPTION_STATE, AttachLazily);
-
-    if (AXObjectCache::accessibilityEnabled())
-        sendAXTextChangedIgnoringLineBreaks(m_node.get(), AXObjectCache::AXTextInserted);
 }
 
 void AppendNodeCommand::doUnapply()
 {
     if (!m_parent->rendererIsEditable())
         return;
 
-    // Need to notify this before actually deleting the text
-    if (AXObjectCache::accessibilityEnabled())
-        sendAXTextChangedIgnoringLineBreaks(m_node.get(), AXObjectCache::AXTextDeleted);
-
     m_node->remove(IGNORE_EXCEPTION_STATE);
 }
 
 #ifndef NDEBUG
 void AppendNodeCommand::getNodesInCommand(HashSet<Node*>& nodes)
 {
     addNodeAndDescendants(m_parent.get(), nodes);
     addNodeAndDescendants(m_node.get(), nodes);
 }
 #endif
 
 } // namespace WebCore