Enable Tracing on content shell for Android

content/browser/android/tracing_intent_handler.h

+// Copyright (c) 2012 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_ANDROID_TRACING_INTENT_HANDLER_H
+#define  CONTENT_BROWSER_ANDROID_TRACING_INTENT_HANDLER_H
+
+#include <jni.h>
+#include <string>
+
+#include "base/file_util.h"
+#include "content/browser/trace_subscriber_stdio.h"
+
+namespace content {
+
+// Registers the TracingIntentHandler native methods.
+bool RegisterTracingIntentHandler(JNIEnv* env);
+
+class TracingIntentHandler : public TraceSubscriberStdio {
+ public:
+  explicit TracingIntentHandler(const FilePath& path);
+  virtual ~TracingIntentHandler();
+
+  // TraceSubscriber implementation
+  virtual void OnEndTracingComplete() OVERRIDE;
+
+  // IntentHandler
+  void OnEndTracing();
+};
+
+}  // namespace content
+#endif  // CONTENT_BROWSER_ANDROID_TRACING_INTENT_HANDLER_H