components: Remove use of MessageLoopProxy and deprecated MessageLoop APIs

components/metrics/call_stack_profile_metrics_provider.h

 // Copyright 2015 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.
 
 #ifndef COMPONENTS_METRICS_CALL_STACK_PROFILE_METRICS_PROVIDER_H_
 #define COMPONENTS_METRICS_CALL_STACK_PROFILE_METRICS_PROVIDER_H_
 
 #include <vector>
 
 #include "base/memory/ref_counted.h"
 #include "base/memory/weak_ptr.h"
 #include "base/profiler/stack_sampling_profiler.h"
 #include "components/metrics/metrics_provider.h"
 
 namespace base {
-class MessageLoopProxy;
+class SingleThreadTaskRunner;
 }  // namespace base
 
 namespace metrics {
 class ChromeUserMetricsExtension;
 
 // Performs metrics logging for the stack sampling profiler.
 class CallStackProfileMetricsProvider : public MetricsProvider {
  public:
   // The event that triggered the profile collection.
   enum Trigger {
@@ skipping 23 matching lines @@
   static const char kFieldTrialName[];
   static const char kReportProfilesGroupName[];
 
  private:
   // Returns true if reporting of profiles is enabled according to the
   // controlling Finch field trial.
   static bool IsSamplingProfilingReportingEnabled();
 
   // Invoked by the profiler on another thread.
   static void ReceiveCompletedProfiles(
-      scoped_refptr<base::MessageLoopProxy> message_loop,
+      scoped_refptr<base::SingleThreadTaskRunner> task_runner,
       base::WeakPtr<CallStackProfileMetricsProvider> provider,
       const base::StackSamplingProfiler::CallStackProfiles& profiles);
   void AppendCompletedProfiles(
       const base::StackSamplingProfiler::CallStackProfiles& profiles);
 
   base::StackSamplingProfiler::CallStackProfiles pending_profiles_;
 
   base::WeakPtrFactory<CallStackProfileMetricsProvider> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(CallStackProfileMetricsProvider);
 };
 
 }  // namespace metrics
 
 #endif  // COMPONENTS_METRICS_CALL_STACK_PROFILE_METRICS_PROVIDER_H_