Add startup_cold, startup_cold_dirty, startup_warm, and startup_warm_dirty test info.

tools/perf/test-info.json

 {
   "_description": "This file contains info about our performance test suites, used by the perf dashboard (http://chromeperf.appspot.com).",
   "blink_perf": {
     "description": "Runs all enabled benchmarks in third_party/WebKit/PerformanceTests/",
     "code": [
       "chrome/src/tools/perf/measurements/blink_perf.py",
       "third_party/WebKit/PerformanceTests/"
     ]
   },
   "bloat": {
@@ skipping 238 matching lines @@
     "description": "Measures frame rate and a variety of other statistics while scrolling down the top 25 web pages. [Documentation](http://www.chromium.org/developers/design-documents/rendering-benchmarks).",
     "code": [
       "chrome/src/tools/perf/measurements/smoothness.py",
       "chrome/src/tools/perf/page_sets/top_25.json"
     ]
   },
   "spaceport": {
     "description": "Performance on [spaceport.io's perfmarks benchmark](http://spaceport.io/community/perfmarks). This test performs 3 animations (rotate, translate, scale) using a variety of methods (css, webgl, canvas, etc) and reports the number of objects that can be simultaneously animated while still achieving 30FPS.",
     "code": ["chrome/src/tools/perf/benchmarks/spaceport.py"]
   },
+  "startup_cold": {
+    "description": "Measures cold startup time with a clean profile.",
+    "code": [
+      "chrome/src/tools/perf/measurements/startup.py",
+      "src/tools/perf/page_sets/blank_page.json"
+    ]
+  },
+  "startup_cold_dirty": {
+    "description": "Measures cold startup time with a dirty profile.",
+    "code": [
+      "chrome/src/tools/perf/measurements/startup.py",
+      "src/tools/perf/page_sets/blank_page.json"
+    ]
+  },
   "startup_measurement": {
     "description": "Measures startup time under various scenarios. This is a port of our old startup_test target to Telemetry.",
     "code": [
       "chrome/src/tools/perf/measurements/startup.py",
       "src/tools/perf/page_sets/blank_page.json"
     ]
   },
   "startup_test": {
     "description": "Measures startup and shutdown time for 1 tab, 5 tabs, and 10 tabs under a several different user profiles. These tests are in the process of being ported to Telemetry - see the startup_measurement test.",
     "code": ["chrome/src/chrome/test/perf/startup_test.cc"]
   },
+  "startup_warm": {
+    "description": "Measures warm startup time with a clean profile.",
+    "code": [
+      "chrome/src/tools/perf/measurements/startup.py",
+      "src/tools/perf/page_sets/blank_page.json"
+    ]
+  },
+  "startup_warm_dirty": {
+    "description": "Measures warm startup time with a dirty profile.",
+    "code": [
+      "chrome/src/tools/perf/measurements/startup.py",
+      "src/tools/perf/page_sets/blank_page.json"
+    ]
+  },
   "sunspider": {
     "description": "Performance on the [SunSpider JavaScript benchmark](http://www.webkit.org/perf/sunspider/sunspider.html)",
     "code": ["chrome/src/tools/perf/benchmarks/sunspider.py"]
   },
   "tough_layout_cases": {
     "description": "Page loading benchmark for the slowest layouts observed in the Alexa top 1 million sites in July 2013.",
     "code": [
       "chrome/src/tools/perf/measurements/page_cycler.py",
       "chrome/src/tools/perf/page_sets/tough_layout_cases.json"
     ]
   },
   "tab_switching_measurement": {
     "description": "This test records the MPArch.RWH_TabSwitchPaintDuration histogram, which is a measure of the time between when a tab was requested to be shown, and when first paint occurred. The script opens 10 pages in different tabs, waits for them to load, and then switches to each tab and records the metric. The pages were chosen from Alexa top ranking sites.",
     "code": [
       "chrome/src/tools/perf/perf_tools/tab_switching_measurement.py",
       "chrome/src/tools/perf/page_sets/top_10.json"
     ]
   },
   "typical_25": {
     "description": "Page load time benchmark for a 25 typical web pages. Designed to represent typical, not highly optimized or highly popular web sites. Runs against pages recorded in April, 2013.",
     "code": [
       "chrome/src/tools/perf/measurements/page_cycler.py",
       "chrome/src/tools/perf/page_sets/typical_25.json"
     ]
   }
 }