Update mojo sdk to rev e7270700d671fa8e458b4d8c9e47f7bcfb65da0b

third_party/mojo/src/mojo/public/cpp/environment/task_tracker.h

Index: third_party/mojo/src/mojo/public/cpp/environment/task_tracker.h
diff --git a/third_party/mojo/src/mojo/public/cpp/environment/task_tracker.h b/third_party/mojo/src/mojo/public/cpp/environment/task_tracker.h
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index 0000000000000000000000000000000000000000..771dc7f63918127830c897e5e146b18f96cdb63e
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+++ b/third_party/mojo/src/mojo/public/cpp/environment/task_tracker.h
@@ -0,0 +1,34 @@
+// Copyright 2015 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 MOJO_PUBLIC_CPP_ENVIRONMENT_TASK_TRACKER_H_
+#define MOJO_PUBLIC_CPP_ENVIRONMENT_TASK_TRACKER_H_
+
+#include <sstream>
+
+#include "mojo/public/cpp/system/macros.h"
+
+namespace mojo {
+
+typedef intptr_t TaskTrackingId;
+
+// Interface for wiring task-level profiling, which is implemented through
+// tracked_objects system in chrome.
+// This API is mainly used from generated interface implementation.
+struct TaskTracker {
+ public:
+  // Start tracking. The returned id must be reclaimed through |EndTracking()|.
+  TaskTrackingId (*StartTracking)(const char* function_name,
+                                  const char* file_name,
+                                  int line_number,
+                                  const void* program_counter);
+  // Finish tracking. The |id| is one that is returned from |StartTracking()|.
+  void (*EndTracking)(const TaskTrackingId id);
+  // Enable or disable tracking. It is disabled by default.
+  void (*SetEnabled)(bool enabled);
+};
+
+}  // namespace mojo
+
+#endif  // MOJO_PUBLIC_CPP_ENVIRONMENT_TASK_TRACKER_H_