Convert renderer JS memory usage reporting to use Mojo.

chrome/browser/task_manager/task_manager.cc

Index: chrome/browser/task_manager/task_manager.cc
diff --git a/chrome/browser/task_manager/task_manager.cc b/chrome/browser/task_manager/task_manager.cc
index 64bd75d699453214d2545b0579813a1fee5310d2..ec32624a1efc1f63033bf5e682f2e064c0c2505b 100644
--- a/chrome/browser/task_manager/task_manager.cc
+++ b/chrome/browser/task_manager/task_manager.cc
@@ -1216,17 +1216,6 @@ void TaskManagerModel::NotifyVideoMemoryUsageStats(
   pending_video_memory_usage_stats_update_ = false;
 }
 
-void TaskManagerModel::NotifyV8HeapStats(base::ProcessId renderer_id,
-                                         size_t v8_memory_allocated,
-                                         size_t v8_memory_used) {
-  for (ResourceList::iterator it = resources_.begin();
-       it != resources_.end(); ++it) {
-    if (base::GetProcId((*it)->GetProcess()) == renderer_id) {
-      (*it)->NotifyV8HeapStats(v8_memory_allocated, v8_memory_used);
-    }
-  }
-}
-
 void TaskManagerModel::NotifyBytesRead(const net::URLRequest& request,
                                        int byte_count) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));