Revert of memory-infra: Finish moving memory_infra from TracingController

content/browser/tracing/tracing_controller_impl.h

Index: content/browser/tracing/tracing_controller_impl.h
diff --git a/content/browser/tracing/tracing_controller_impl.h b/content/browser/tracing/tracing_controller_impl.h
index 81ce092a68d85ba8130b72e0825d335ffb4891e1..0c7b8ea7cae9a31c6ddf76985f089b68bee01eaa 100644
--- a/content/browser/tracing/tracing_controller_impl.h
+++ b/content/browser/tracing/tracing_controller_impl.h
@@ -47,6 +47,7 @@
 
 class TracingControllerImpl
     : public TracingController,
+      public base::trace_event::MemoryDumpManagerDelegate,
       public base::trace_event::TracingAgent {
  public:
   // Create an endpoint that may be supplied to any TraceDataSink to
@@ -87,6 +88,12 @@
       const std::string& sync_id,
       const RecordClockSyncMarkerCallback& callback) override;
 
+  // base::trace_event::MemoryDumpManagerDelegate implementation.
+  void RequestGlobalMemoryDump(
+      const base::trace_event::MemoryDumpRequestArgs& args,
+      const base::trace_event::MemoryDumpCallback& callback) override;
+  uint64_t GetTracingProcessId() const override;
+
   class TraceMessageFilterObserver {
    public:
     virtual void OnTraceMessageFilterAdded(TraceMessageFilter* filter) = 0;
@@ -99,6 +106,16 @@
   friend struct base::DefaultLazyInstanceTraits<TracingControllerImpl>;
   friend class TraceMessageFilter;
 
+  // The arguments and callback for an queued global memory dump request.
+  struct QueuedMemoryDumpRequest {
+    QueuedMemoryDumpRequest(
+        const base::trace_event::MemoryDumpRequestArgs& args,
+        const base::trace_event::MemoryDumpCallback& callback);
+    ~QueuedMemoryDumpRequest();
+    const base::trace_event::MemoryDumpRequestArgs args;
+    const base::trace_event::MemoryDumpCallback callback;
+  };
+
   TracingControllerImpl();
   ~TracingControllerImpl() override;
 
@@ -121,6 +138,8 @@
   bool can_get_trace_buffer_usage() const {
     return pending_trace_buffer_usage_callback_.is_null();
   }
+
+  void PerformNextQueuedGlobalMemoryDump();
 
   // Methods for use by TraceMessageFilter.
   void AddTraceMessageFilter(TraceMessageFilter* trace_message_filter);
@@ -151,6 +170,14 @@
 
   void OnTraceLogStatusReply(TraceMessageFilter* trace_message_filter,
                              const base::trace_event::TraceLogStatus& status);
+  void OnProcessMemoryDumpResponse(TraceMessageFilter* trace_message_filter,
+                                   uint64_t dump_guid,
+                                   bool success);
+
+  // Callback of MemoryDumpManager::CreateProcessDump().
+  void OnBrowserProcessMemoryDumpDone(uint64_t dump_guid, bool success);
+
+  void FinalizeGlobalMemoryDumpIfAllProcessesReplied();
 
   void SetEnabledOnFileThread(
       const base::trace_event::TraceConfig& trace_config,
@@ -191,6 +218,12 @@
   float maximum_trace_buffer_usage_;
   size_t approximate_event_count_;
 
+  // Pending acks for memory RequestGlobalDumpPoint.
+  int pending_memory_dump_ack_count_;
+  int failed_memory_dump_count_;
+  TraceMessageFilterSet pending_memory_dump_filters_;
+  std::list<QueuedMemoryDumpRequest> queued_memory_dump_requests_;
+
   std::vector<base::trace_event::TracingAgent*> additional_tracing_agents_;
   int pending_clock_sync_ack_count_;
   base::OneShotTimer clock_sync_timer_;