Enable Tracing on content shell for Android

content/public/android/java/src/org/chromium/content/browser/TracingIntentHandler.java

Index: content/public/android/java/src/org/chromium/content/browser/TracingIntentHandler.java
diff --git a/content/public/android/java/src/org/chromium/content/browser/TracingIntentHandler.java b/content/public/android/java/src/org/chromium/content/browser/TracingIntentHandler.java
new file mode 100644
index 0000000000000000000000000000000000000000..0be3c35e417e6e699117d46041a3b2f8fdf59965
--- /dev/null
+++ b/content/public/android/java/src/org/chromium/content/browser/TracingIntentHandler.java
@@ -0,0 +1,33 @@
+// 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.
+
+package org.chromium.content.browser;
+
+import org.chromium.base.JNINamespace;
+
+/**
+ * Handler for tracing related intent.
+ */
+@JNINamespace("content")
+public class TracingIntentHandler {
+
+    /**
+     * Begin recording trace events.
+     *
+     * @param path Specifies where the trace data will be saved when tracing is stopped.
+     */
+    public static void beginTracing(String path) {
+        nativeBeginTracing(path);
+    }
+
+    /**
+     * Stop recording trace events, and dump the data to the file
+     */
+    public static void endTracing() {
+        nativeEndTracing();
+    }
+
+    private static native void nativeBeginTracing(String path);
+    private static native void nativeEndTracing();
+}