Add support for running the profiler output processing scripts with node.

tools/tickprocessor-driver.js

Index: tools/tickprocessor-driver.js
diff --git a/tools/tickprocessor-driver.js b/tools/tickprocessor-driver.js
index 946f543219b638ccbe5caf6d85b2b00c99ec2c95..1b3199d4926d09b9f1fe0a7cc743cb35da2326e7 100644
--- a/tools/tickprocessor-driver.js
+++ b/tools/tickprocessor-driver.js
@@ -25,6 +25,18 @@
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
+// Node imports
+if (typeof module !== 'undefined' && module.exports) {
+  tickProcessor = require('./tickprocessor');
+  ArgumentsProcessor = tickProcessor.ArgumentsProcessor;
+  TickProcessor = tickProcessor.TickProcessor;
+  SnapshotLogProcessor = tickProcessor.SnapshotLogProcessor;
+  UnixCppEntriesProvider = tickProcessor.UnixCppEntriesProvider;
+  WindowsCppEntriesProvider = tickProcessor.WindowsCppEntriesProvider;
+  MacCppEntriesProvider = tickProcessor.MacCppEntriesProvider;
+  WebInspector = require('./SourceMap').WebInspector;
+  arguments = process.argv.slice(2);
+}
 
 // Tick Processor's code flow.