[Telemetry]: Add PeaceKeeper Benchmark suite(Render, DOM, String and Array tests).

tools/perf/test-info.json

Index: tools/perf/test-info.json
diff --git a/tools/perf/test-info.json b/tools/perf/test-info.json
index 8f346c80b73bcce1187e86b6005dcfafcb323773..ae4a3b27a426946082b49f0c0b9a4a1afb77f802 100644
--- a/tools/perf/test-info.json
+++ b/tools/perf/test-info.json
@@ -152,6 +152,12 @@
   "robohornet_pro":{
     "description":"Milliseconds to complete the [RoboHornetPro demo by Microsoft](http://ie.microsoft.com/testdrive/performance/robohornetpro/)"
   },
+  "peacekeeper":{
+    "description":"Peacekeeper measures browser's performance by testing its JavaScript functionality.\n\nJavaScript is a widely used programming language used in the creation of modern websites to provide features such as animation, navigation,forms and other common requirements. By measuring a browser's ability to handle commonly used JavaScript functions Peacekeeper can evaluate its performance. Peacekeeper scores are measured in operations per second or rendered frames per second depending on the test. Final Score is computed by calculating geometric mean of individual tests scores. (http://peacekeeper.futuremark.com)",

[tonyg, 2013/11/06 21:51:55]

Use markdown format for the link. See robohornet_pro's link above.

[prasadv, 2013/11/06 22:54:45]

Done.

+    "code":[
+      "chrome/src/tools/perf/benchmark/peacekeeper.py"
+    ]
+  },
   "sizes":{
     "description":"Tracks binary sizes and number of static initializers.",
     "code":[