Refactor RenderProcessHost to use IPC::Listener instead of RenderWidgetHost

chrome/browser/task_manager/guest_resource_provider.cc

Index: chrome/browser/task_manager/guest_resource_provider.cc
diff --git a/chrome/browser/task_manager/guest_resource_provider.cc b/chrome/browser/task_manager/guest_resource_provider.cc
index 5e17851fc1848ac1521ffe82db5b3b26e908542b..77d832a3b0cabbe8671bd2c28136a6b2016e4524 100644
--- a/chrome/browser/task_manager/guest_resource_provider.cc
+++ b/chrome/browser/task_manager/guest_resource_provider.cc
@@ -131,20 +131,17 @@ void GuestResourceProvider::StartUpdating() {
   DCHECK(!updating_);
   updating_ = true;
 
-  // Add all the existing guest WebContents.
-  for (RenderProcessHost::iterator i(
-           RenderProcessHost::AllHostsIterator());
-       !i.IsAtEnd(); i.Advance()) {
-    RenderProcessHost::RenderWidgetHostsIterator iter =
-        i.GetCurrentValue()->GetRenderWidgetHostsIterator();
-    for (; !iter.IsAtEnd(); iter.Advance()) {
-      const RenderWidgetHost* widget = iter.GetCurrentValue();
-      if (widget->IsRenderView()) {
-        RenderViewHost* rvh =
-            RenderViewHost::From(const_cast<RenderWidgetHost*>(widget));
-        if (rvh->IsSubframe())
-          Add(rvh);
-      }
+  scoped_ptr<RenderWidgetHost::List> hosts =
+      RenderWidgetHost::GetRenderWidgetHosts();
+  for (RenderWidgetHost::List::const_iterator it = hosts->begin();
+      it != hosts->end();
+      ++it) {
+    const RenderWidgetHost* widget = *it;
+    if (widget->IsRenderView()) {
+      RenderViewHost* rvh =
+          RenderViewHost::From(const_cast<RenderWidgetHost*>(widget));
+      if (rvh->IsSubframe())
+        Add(rvh);
     }
   }