components: Remove use of MessageLoopProxy and deprecated MessageLoop APIs

components/feedback/tracing_manager.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "components/feedback/tracing_manager.h"
 
 #include "base/bind.h"
+#include "base/location.h"
 #include "base/memory/ref_counted_memory.h"
-#include "base/message_loop/message_loop_proxy.h"
+#include "base/single_thread_task_runner.h"
+#include "base/thread_task_runner_handle.h"
 #include "components/feedback/feedback_util.h"
 #include "content/public/browser/tracing_controller.h"
 
 namespace {
 
 // Only once trace manager can exist at a time.
 TracingManager* g_tracing_manager = NULL;
 // Trace IDs start at 1 and increase.
 int g_next_trace_id = 1;
 // Name of the file to store the tracing data as.
@@ skipping 39 matching lines @@
     } else {
       return false;
     }
   } else {
     std::map<int, scoped_refptr<base::RefCountedString> >::iterator data =
         trace_data_.find(id);
     if (data == trace_data_.end())
       return false;
 
     // Always return the data asychronously, so the behavior is consistant.
-    base::MessageLoopProxy::current()->PostTask(
-        FROM_HERE,
-        base::Bind(callback, data->second));
+    base::ThreadTaskRunnerHandle::Get()->PostTask(
+        FROM_HERE, base::Bind(callback, data->second));
     return true;
   }
 }
 
 void TracingManager::DiscardTraceData(int id) {
   trace_data_.erase(id);
 
   // If the trace is discarded before it is complete, clean up the accumulators.
   if (id == current_trace_id_) {
     current_trace_id_ = 0;
@@ skipping 28 matching lines @@
 
   if (!trace_callback_.is_null()) {
     trace_callback_.Run(output);
     trace_callback_.Reset();
   }
 
   current_trace_id_ = 0;
 
   // Tracing has to be restarted asynchronous, so the TracingController can
   // clean up.
-  base::MessageLoopProxy::current()->PostTask(
-      FROM_HERE,
-      base::Bind(&TracingManager::StartTracing,
-                 weak_ptr_factory_.GetWeakPtr()));
+  base::ThreadTaskRunnerHandle::Get()->PostTask(
+      FROM_HERE, base::Bind(&TracingManager::StartTracing,
+                            weak_ptr_factory_.GetWeakPtr()));
 }
 
 // static
 scoped_ptr<TracingManager> TracingManager::Create() {
   if (g_tracing_manager)
     return scoped_ptr<TracingManager>();
   return scoped_ptr<TracingManager>(new TracingManager());
 }
 
 TracingManager* TracingManager::Get() {
   return g_tracing_manager;
 }