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

chrome/browser/metrics/leak_detector/leak_detector_remote_controller.h

-// 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.
-
-#ifndef CHROME_BROWSER_METRICS_LEAK_DETECTOR_LEAK_DETECTOR_REMOTE_CONTROLLER_H_
-#define CHROME_BROWSER_METRICS_LEAK_DETECTOR_LEAK_DETECTOR_REMOTE_CONTROLLER_H_
-
-#include <string>
-#include <vector>
-
-#include "base/macros.h"
-#include "components/metrics/leak_detector/leak_detector.mojom.h"
-#include "components/metrics/proto/memory_leak_report.pb.h"
-#include "mojo/public/cpp/bindings/interface_request.h"
-#include "mojo/public/cpp/bindings/strong_binding.h"
-
-namespace metrics {
-
-// This class acts as an interface to LeakDetector clients running on processes
-// other than its own (the browser process).
-class LeakDetectorRemoteController : public mojom::LeakDetector {
- public:
-  // Interface class to be implemented by a local controller class that provides
-  // leak detector parameters and can pass leak reports to UMA.
-  class LocalController {
-   public:
-    virtual ~LocalController() {}
-
-    // Returns a set of leak detection params to be used when initializing the
-    // leak detector on a remote process.
-    virtual MemoryLeakReportProto::Params GetParams() const = 0;
-
-    // Pass a vector of memory leak reports provided by a remote process to the
-    // local controller class.
-    virtual void SendLeakReports(
-        const std::vector<MemoryLeakReportProto>& reports) = 0;
-
-    // Signal that a remote process that had been running the leak detector
-    // (i.e. been given params with sampling_rate = 0).
-    virtual void OnRemoteProcessShutdown() = 0;
-  };
-
-  ~LeakDetectorRemoteController() override;
-
-  static void Create(mojom::LeakDetectorRequest request);
-
-  // mojom::LeakDetector:
-  void GetParams(
-      const mojom::LeakDetector::GetParamsCallback& callback) override;
-  void SendLeakReports(std::vector<mojom::MemoryLeakReportPtr>) override;
-
-  // Sets a global pointer to a LocalController implementation. The global
-  // pointer is defined in the .cc file.
-  static void SetLocalControllerInstance(LocalController* controller);
-
- private:
-  explicit LeakDetectorRemoteController(mojom::LeakDetectorRequest request);
-
-  mojo::StrongBinding<mojom::LeakDetector> binding_;
-
-  DISALLOW_COPY_AND_ASSIGN(LeakDetectorRemoteController);
-};
-
-}  // namespace metrics
-
-#endif  // CHROME_BROWSER_METRICS_LEAK_DETECTOR_LEAK_DETECTOR_REMOTE_CONTROLLER_H_