Revert of Deletes mojo::Callback

chrome/utility/chrome_content_utility_client.cc

 // Copyright (c) 2012 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 "chrome/utility/chrome_content_utility_client.h"
 
 #include <stddef.h>
 #include <utility>
 
 #include "base/command_line.h"
@@ skipping 65 matching lines @@
 }
 
 class ResourceUsageReporterImpl : public mojom::ResourceUsageReporter {
  public:
   explicit ResourceUsageReporterImpl(
       mojo::InterfaceRequest<mojom::ResourceUsageReporter> req)
       : binding_(this, std::move(req)) {}
   ~ResourceUsageReporterImpl() override {}
 
  private:
-  void GetUsageData(const GetUsageDataCallback& callback) override {
+  void GetUsageData(const mojo::Callback<void(mojom::ResourceUsageDataPtr)>&
+                        callback) override {
     mojom::ResourceUsageDataPtr data = mojom::ResourceUsageData::New();
     size_t total_heap_size = net::ProxyResolverV8::GetTotalHeapSize();
     if (total_heap_size) {
       data->reports_v8_stats = true;
       data->v8_bytes_allocated = total_heap_size;
       data->v8_bytes_used = net::ProxyResolverV8::GetUsedHeapSize();
     }
     callback.Run(std::move(data));
   }
 
@@ skipping 207 matching lines @@
   safe_browsing::zip_analyzer::Results results;
   safe_browsing::dmg::AnalyzeDMGFile(
       IPC::PlatformFileForTransitToFile(dmg_file), &results);
   Send(new ChromeUtilityHostMsg_AnalyzeDmgFileForDownloadProtection_Finished(
       results));
   ReleaseProcessIfNeeded();
 }
 #endif  // defined(OS_MACOSX)
 
 #endif  // defined(FULL_SAFE_BROWSING)