[tracing] IPC messages and stubs for inter-process memory dumps

content/browser/tracing/tracing_controller_impl.h

 // Copyright (c) 2013 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 CONTENT_BROWSER_TRACING_TRACING_CONTROLLER_IMPL_H_
 #define CONTENT_BROWSER_TRACING_TRACING_CONTROLLER_IMPL_H_
 
 #include <set>
 #include <string>
 #include <vector>
 
 #include "base/lazy_instance.h"
+#include "base/trace_event/memory_dump_manager.h"
 #include "content/public/browser/tracing_controller.h"
 
 namespace base {
 class RefCountedString;
 class RefCountedMemory;
 }
 
 namespace content {
 
 class TraceMessageFilter;
 class TracingUI;
 
-class TracingControllerImpl : public TracingController {
+class TracingControllerImpl
+    : public TracingController,
+      public base::trace_event::MemoryDumpManagerDelegate {
  public:
   static TracingControllerImpl* GetInstance();
 
   // TracingController implementation.
   bool GetCategories(const GetCategoriesDoneCallback& callback) override;
   bool EnableRecording(const base::trace_event::CategoryFilter& category_filter,
                        const base::trace_event::TraceOptions& trace_options,
                        const EnableRecordingDoneCallback& callback) override;
   bool DisableRecording(const scoped_refptr<TraceDataSink>& sink) override;
   bool EnableMonitoring(
@@ skipping 11 matching lines @@
   bool GetTraceBufferUsage(
       const GetTraceBufferUsageCallback& callback) override;
   bool SetWatchEvent(const std::string& category_name,
                      const std::string& event_name,
                      const WatchEventCallback& callback) override;
   bool CancelWatchEvent() override;
 
   void RegisterTracingUI(TracingUI* tracing_ui);
   void UnregisterTracingUI(TracingUI* tracing_ui);
 
+  // base::trace_event::MemoryDumpManagerDelegate implementation.
+  void RequestGlobalMemoryDump(
+      const base::trace_event::MemoryDumpRequestArgs& args,
+      const base::trace_event::MemoryDumpCallback& callback) override;
+
  private:
   typedef std::set<scoped_refptr<TraceMessageFilter> > TraceMessageFilterSet;
 
   friend struct base::DefaultLazyInstanceTraits<TracingControllerImpl>;
   friend class TraceMessageFilter;
 
   TracingControllerImpl();
   ~TracingControllerImpl() override;
 
   bool can_enable_recording() const {
@@ skipping 45 matching lines @@
 #if defined(OS_CHROMEOS) || defined(OS_WIN)
   void OnEndSystemTracingAcked(
       const scoped_refptr<base::RefCountedString>& events_str_ptr);
 #endif
 
   void OnCaptureMonitoringSnapshotAcked(
       TraceMessageFilter* trace_message_filter);
 
   void OnTraceLogStatusReply(TraceMessageFilter* trace_message_filter,
                              const base::trace_event::TraceLogStatus& status);
-
+  void OnProcessMemoryDumpResponse(TraceMessageFilter* trace_message_filter,
+                                   uint64 dump_guid,
+                                   bool success);
   void OnWatchEventMatched();
 
   void SetEnabledOnFileThread(
       const base::trace_event::CategoryFilter& category_filter,
       int mode,
       const base::trace_event::TraceOptions& trace_options,
       const base::Closure& callback);
   void SetDisabledOnFileThread(const base::Closure& callback);
   void OnEnableRecordingDone(
       const base::trace_event::CategoryFilter& category_filter,
@@ skipping 39 matching lines @@
   std::set<std::string> known_category_groups_;
   std::set<TracingUI*> tracing_uis_;
   scoped_refptr<TraceDataSink> trace_data_sink_;
   scoped_refptr<TraceDataSink> monitoring_data_sink_;
   DISALLOW_COPY_AND_ASSIGN(TracingControllerImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_TRACING_TRACING_CONTROLLER_IMPL_H_