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

tools/profile_view.js

Index: tools/profile_view.js
diff --git a/tools/profile_view.js b/tools/profile_view.js
index d1545acd99699adc8672afad809a969105ab0f74..43f5db10c60785f9642fc83a4c7ac222e61c5c3a 100644
--- a/tools/profile_view.js
+++ b/tools/profile_view.js
@@ -25,6 +25,10 @@
 // (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) {
+  ConsArray = require('./consarray');
+}
 
 /**
  * Creates a Profile View builder object.
@@ -199,3 +203,9 @@ ProfileView.Node.prototype.sortChildren = function(
     sortFunc) {
   this.children.sort(sortFunc);
 };
+
+// Node exports
+if (typeof module !== 'undefined' && module.exports) {
+  module.exports.ProfileView = ProfileView;
+  module.exports.ViewBuilder = ViewBuilder;
+}