Add stats collection for telemetry startup.warm.blank_page test.

mojo/common/trace_controller_impl.h

 // 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_COMMON_TRACING_CONTROLLER_IMPL_H_
 #define MOJO_COMMON_TRACING_CONTROLLER_IMPL_H_
 
 #include "base/memory/ref_counted_memory.h"
-#include "mojo/services/tracing/tracing.mojom.h"
+#include "mojo/services/tracing/public/interfaces/tracing.mojom.h"
 #include "third_party/mojo/src/mojo/public/cpp/bindings/interface_request.h"
 #include "third_party/mojo/src/mojo/public/cpp/bindings/strong_binding.h"
 
 namespace mojo {
 
 class TraceControllerImpl : public tracing::TraceController {
  public:
   explicit TraceControllerImpl(
       InterfaceRequest<tracing::TraceController> request);
 
@@ skipping 10 matching lines @@
 
   tracing::TraceDataCollectorPtr collector_;
   StrongBinding<tracing::TraceController> binding_;
 
   DISALLOW_COPY_AND_ASSIGN(TraceControllerImpl);
 };
 
 }  // namespace mojo
 
 #endif  // MOJO_COMMON_TRACING_CONTROLLER_IMPL_H_