Revert of Store the callstack of the IPC sender of ViewMsg_New

content/renderer/render_frame_impl.cc

Index: content/renderer/render_frame_impl.cc
diff --git a/content/renderer/render_frame_impl.cc b/content/renderer/render_frame_impl.cc
index 88c7bd484e73f951f3597186b903a13e85e4cf77..d411147589e6a4a92c1f6315ee13c27ff4c00e2d 100644
--- a/content/renderer/render_frame_impl.cc
+++ b/content/renderer/render_frame_impl.cc
@@ -676,32 +676,7 @@ RenderFrameImpl::RenderFrameImpl(RenderViewImpl* render_view, int routing_id)
       weak_factory_(this) {
   std::pair<RoutingIDFrameMap::iterator, bool> result =
       g_routing_id_frame_map.Get().insert(std::make_pair(routing_id_, this));
-  if (!result.second) {
-    // TODO(lfg): Temporary. We're about to force a crash, so save the debug
-    // info on the stack so we can recover it from the crash dumps.
-    RenderFrameImpl* duplicate = result.first->second;
-    const std::vector<unsigned long>& debug_info = render_view->debug_info();
-    const std::vector<unsigned long>& duplicate_debug_info =
-        duplicate->render_view()->debug_info();
-    unsigned long duplicate_stack_debug_info[128];
-    unsigned long stack_debug_info[128];
-    const int size = debug_info.size() > 128 ? 128 : debug_info.size();
-    const int duplicate_size =
-        duplicate_debug_info.size() > 128 ? 128 : duplicate_debug_info.size();
-    for (int i = 0; i < size; i++)
-      stack_debug_info[i] = debug_info[i];
-    for (int i = 0; i < duplicate_size; i++)
-      duplicate_stack_debug_info[i] = duplicate_debug_info[i];
-    CHECK(result.second) << "Inserting a duplicate item.";
-    // Make sure the variable is stored on the stack and use it so that the
-    // compiler won't optimize it out.
-    base::debug::Alias(&stack_debug_info);
-    base::debug::Alias(&duplicate_stack_debug_info);
-    for (int i = 0; i < size; i++)
-      LOG(ERROR) << stack_debug_info[i];
-    for (int i = 0; i < duplicate_size; i++)
-      LOG(ERROR) << duplicate_stack_debug_info[i];
-  }
+  CHECK(result.second) << "Inserting a duplicate item.";
 
   RenderThread::Get()->AddRoute(routing_id_, this);