Add spaceport benchmark to Chrome Remote Control.

chrome/test/data/third_party/spaceport/README.chromium

 Name: HTML5 Game Benchmarks
 URL: git://github.com/sibblingz/PerfMarks
 URL: http://spaceport.io/community/perfmarks
 Version: 0
 Date: May 14, 2012
 Revision: c2dcbffeb492430c27160cb1ba5d6f1a2bf75d0a
 License: Various, see license file
 License File: LICENSE
 
 Additional files, not in the original suite:
   README.chromium
 
 Modifications to the test suite to enable running as a cross browser performance test.
   js/index.js
 
 How to update:
 
-In js/index.js, change the 'step' attribute to add the required console.log
+1. In js/index.js, change the 'step' attribute to add the required console.log
 statements. Below is the patch.
 
 diff --git a/js/index.js b/js/index.js
 index 2c23d0d..059a57a 100644
 --- a/js/index.js
 +++ b/js/index.js
 @@ -36,17 +36,25 @@ define([ 'tests/performance', 'testDom', 'testRunner', 'tables', 'util/report',
          function runPerformanceTests(callback) {
              callback = ensureCallback(callback);
  
@@ skipping 13 matching lines @@
 +                    return testDone(err, name, results);
 +                }
              });
          }
  
          function runAndUploadPerformanceTests(callback) {
              callback = ensureCallback(callback);
  
              runPerformanceTests(function (err, results) {
                  if (err) return callback(err);
+
+2. In js/tests/sprites.js, apply the below patch to keep too many objects from
+being created on fast desktop machines.
+
+diff --git a/chrome/test/data/third_party/spaceport/js/tests/sprites.js b/chrome/test/data/third_party/spaceport/js/tests/s
+index b491fe6..64b2d03 100644
+--- a/chrome/test/data/third_party/spaceport/js/tests/sprites.js
++++ b/chrome/test/data/third_party/spaceport/js/tests/sprites.js
+@@ -168,7 +168,7 @@ define([ 'sprites/sources', 'sprites/transformers', 'sprites/renderers', 'util/e
+                 rawData.push([ objectCount, results ]);
+                 
+                 var timePerObjectEstimate = 1/(objectCount*results.fps);
+-                var estimatedMaxObjects = Math.floor(1/(targetFramerate * timePerObjectEstimate));
++                var estimatedMaxObjects = Math.min(5000, Math.floor(1/(targetFramerate * timePerObjectEstimate)));
+                 
+                 var nextObjectCount = nextNumberToTry(fpsResults, estimatedMaxObjects);
+                 test(nextObjectCount);