Reland of "Mojo interface/service for Leak Detector on remote process"

chrome/browser/metrics/leak_detector/leak_detector_controller.h

Index: chrome/browser/metrics/leak_detector/leak_detector_controller.h
diff --git a/chrome/browser/metrics/leak_detector/leak_detector_controller.h b/chrome/browser/metrics/leak_detector/leak_detector_controller.h
index 7dabdfb8259e222970705533672bfc965d5f9e96..59b05ce4d1e3ca186097b34b3ad5a69be5f6bcec 100644
--- a/chrome/browser/metrics/leak_detector/leak_detector_controller.h
+++ b/chrome/browser/metrics/leak_detector/leak_detector_controller.h
@@ -9,6 +9,7 @@
 
 #include "base/macros.h"
 #include "base/threading/thread_checker.h"
+#include "chrome/browser/metrics/leak_detector/leak_detector_remote_controller.h"
 #include "components/metrics/leak_detector/leak_detector.h"
 #include "components/metrics/proto/memory_leak_report.pb.h"
 
@@ -16,7 +17,9 @@ namespace metrics {
 
 // This class initializes the LeakDetector on the browser process and registers
 // itself to be notified of leak reports.
-class LeakDetectorController : public LeakDetector::Observer {
+class LeakDetectorController
+    : public LeakDetector::Observer,
+      public LeakDetectorRemoteController::LocalController {
  public:
   LeakDetectorController();
   ~LeakDetectorController() override;
@@ -29,7 +32,19 @@ class LeakDetectorController : public LeakDetector::Observer {
   // LeakDetector::Observer:
   void OnLeaksFound(const std::vector<MemoryLeakReportProto>& reports) override;
 
+  // LeakDetectorRemoteController::LocalController:
+  MemoryLeakReportProto::Params GetParams() const override;
+  void SendLeakReports(
+      const std::vector<MemoryLeakReportProto>& reports) override;
+  void OnRemoteProcessShutdown() override;
+
  private:
+  // Stores a given array of leak reports in |stored_reports_|. |process_type|
+  // is the type of process that generated these reports. The reports must all
+  // come from the same process type.
+  void StoreLeakReports(const std::vector<MemoryLeakReportProto>& reports,
+                        MemoryLeakReportProto::ProcessType process_type);
+
   // All leak reports received through OnLeakFound() are stored in protobuf
   // format.
   std::vector<MemoryLeakReportProto> stored_reports_;