Refactor RenderProcessHost to use IPC::Listener instead of RenderWidgetHost

content/browser/accessibility/accessibility_ui.cc

Index: content/browser/accessibility/accessibility_ui.cc
diff --git a/content/browser/accessibility/accessibility_ui.cc b/content/browser/accessibility/accessibility_ui.cc
index d519d1c4fd924833e0fe559a3afe63f2512f60e6..8445c6f382c6074e9adbb04c09927e61abaa43d6 100644
--- a/content/browser/accessibility/accessibility_ui.cc
+++ b/content/browser/accessibility/accessibility_ui.cc
@@ -94,28 +94,23 @@ void SendTargetsData(
     const WebUIDataSource::GotDataCallback& callback) {
   scoped_ptr<ListValue> rvh_list(new ListValue());
 
-  for (RenderProcessHost::iterator it(RenderProcessHost::AllHostsIterator());
-       !it.IsAtEnd(); it.Advance()) {
-    RenderProcessHost* render_process_host = it.GetCurrentValue();
-    DCHECK(render_process_host);
-
+  scoped_ptr<RenderWidgetHost::List> hosts =
+      RenderWidgetHost::GetRenderWidgetHosts();
+  for (RenderWidgetHost::List::const_iterator it = hosts->begin();
+      it != hosts->end();
+      ++it) {
+    const RenderWidgetHost* widget = *it;
     // Ignore processes that don't have a connection, such as crashed tabs.
-    if (!render_process_host->HasConnection())
+    if (!widget->GetProcess()->HasConnection())
       continue;
 
-    RenderProcessHost::RenderWidgetHostsIterator rwh_it(
-        render_process_host->GetRenderWidgetHostsIterator());
-    for (; !rwh_it.IsAtEnd(); rwh_it.Advance()) {
-      const RenderWidgetHost* rwh = rwh_it.GetCurrentValue();
-      DCHECK(rwh);
-      if (!rwh || !rwh->IsRenderView())
+    if (!widget->IsRenderView())
         continue;
 
-      RenderViewHost* rvh =
-          RenderViewHost::From(const_cast<RenderWidgetHost*>(rwh));
+    RenderViewHost* rvh =
+        RenderViewHost::From(const_cast<RenderWidgetHost*>(widget));
 
-      rvh_list->Append(BuildTargetDescriptor(rvh));
-    }
+    rvh_list->Append(BuildTargetDescriptor(rvh));
   }
 
   scoped_ptr<DictionaryValue> data(new DictionaryValue());