[Telemetry] Add test case for power usage of background animations/heavy tab.

tools/perf/page_sets/power_intensive.json

Index: tools/perf/page_sets/power_intensive.json
diff --git a/tools/perf/page_sets/power_intensive.json b/tools/perf/page_sets/power_intensive.json
new file mode 100644
index 0000000000000000000000000000000000000000..7f3d65e68339c17c795787e77e1cf99bf7eac790
--- /dev/null
+++ b/tools/perf/page_sets/power_intensive.json
@@ -0,0 +1,22 @@
+{

[tonyg, 2014/03/31 17:16:09]

Let's name this tough_energy_cases.json or tough_power_cases.json to be more
consistent with the other page set naming conventions.

+  "description": "Pages for measuring Chrome power draw.",
+  "archive_data_file": "data/power_intensive.json",
+  "credentials_path": "data/credentials.json",
+  "pages": [
+    { "url": "file://power_intensive/above-fold-animated-gif.html",
+      "why": "Above the fold animated gif running in the background"},
+    {
+      "url": "https://mail.google.com/mail/",
+      "why": "productivity, top google properties",
+      "credentials": "google",
+      "navigate_steps" : [
+        { "action": "navigate" },
+        { "action": "wait", "javascript": "window.gmonkey !== undefined && document.getElementById('gb') !== null" }
+      ]
+    },
+    { "url": "file://power_intensive/below-fold-animated-gif.html",
+      "why": "Below the fold animated gif" },
+    { "url": "file://power_intensive/below-fold-flash.html",
+      "why": "Below the fold flash animation" }
+  ]
+}