Revert of Mojo interface/service for Leak Detector on remote process

chrome/browser/metrics/leak_detector/leak_detector_remote_controller.cc

-// Copyright 2016 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/browser/metrics/leak_detector/leak_detector_remote_controller.h"
-
-#include "components/metrics/leak_detector/protobuf_to_mojo_converter.h"
-#include "content/public/browser/browser_thread.h"
-
-namespace metrics {
-
-namespace {
-
-// All instances of LeakDetectorRemoteController will need to reference a single
-// LocalController instance, referenced by this pointer. All remote LeakDetector
-// clients will get their params from and send leak reports to this instance.
-LeakDetectorRemoteController::LocalController* g_local_controller = nullptr;
-
-}  // namespace
-
-LeakDetectorRemoteController::~LeakDetectorRemoteController() {}
-
-// static
-void LeakDetectorRemoteController::Create(mojom::LeakDetectorRequest request) {
-  DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
-  new LeakDetectorRemoteController(std::move(request));
-}
-
-void LeakDetectorRemoteController::GetParams(
-    const mojom::LeakDetector::GetParamsCallback& callback) {
-  // If no controller exists, send an empty param protobuf. The remote caller
-  // should not initialize anything if the params are empty.
-  MemoryLeakReportProto_Params params;
-  if (g_local_controller) {
-    params = g_local_controller->GetParams();
-  }
-
-  mojo::StructPtr<mojom::LeakDetectorParams> mojo_params =
-      mojom::LeakDetectorParams::New();
-  leak_detector::protobuf_to_mojo_converter::ParamsToMojo(params,
-                                                          mojo_params.get());
-
-  callback.Run(std::move(mojo_params));
-}
-
-void LeakDetectorRemoteController::SendLeakReports(
-    std::vector<mojom::MemoryLeakReportPtr> reports) {
-  std::vector<MemoryLeakReportProto> report_protos;
-  report_protos.reserve(reports.size());
-
-  for (const mojom::MemoryLeakReportPtr& report : reports) {
-    report_protos.push_back(MemoryLeakReportProto());
-    MemoryLeakReportProto* proto = &report_protos.back();
-
-    leak_detector::protobuf_to_mojo_converter::MojoToReport(*report, proto);
-  }
-  DCHECK(g_local_controller);
-  g_local_controller->SendLeakReports(report_protos);
-}
-
-LeakDetectorRemoteController::LeakDetectorRemoteController(
-    mojom::LeakDetectorRequest request)
-    : binding_(this, std::move(request)) {}
-
-// static
-void LeakDetectorRemoteController::SetLocalControllerInstance(
-    LocalController* controller) {
-  g_local_controller = controller;
-}
-
-}  // namespace metrics