Plugin Power Saver: Add some UMAs to test plugins in wild.

tools/metrics/actions/actions.xml

Index: tools/metrics/actions/actions.xml
diff --git a/tools/metrics/actions/actions.xml b/tools/metrics/actions/actions.xml
index 0e6cdbb03cb4cbf78fc6d8e3d9aaea3d4add5f55..a9064a9cae5a05e55af5bbe270d2f3756f8130be 100644
--- a/tools/metrics/actions/actions.xml
+++ b/tools/metrics/actions/actions.xml
@@ -2659,7 +2659,42 @@ should be able to be added at any place in this file.
 
 <action name="Flash.PluginInstanceCreated">
   <owner>thestig@chromium.org</owner>
-  <description>Count of frame loads that also load PPAPI Flash.</description>
+  <description>Count of Flash plugin instances.</description>
+</action>
+
+<action name="Flash.PluginInstanceEssentialCrossOrigin">
+  <owner>thestig@chromium.org</owner>
+  <description>
+    Count of cross-origin Flash plugin instances marked essential. These may
+    either be large, or the origin may be whitelisted.
+  </description>
+</action>
+
+<action name="Flash.PluginInstanceEssentialSameOrigin">
+  <owner>thestig@chromium.org</owner>
+  <description>Count of same-origin Flash plugin instances.</description>
+</action>
+
+<action name="Flash.PluginInstancePeripheral">
+  <owner>thestig@chromium.org</owner>
+  <description>Count of Flash plugin instances marked peripheral.</description>
+</action>
+
+<action name="Flash.PluginInstanceUnthrottledByClick">
+  <owner>thestig@chromium.org</owner>
+  <description>
+    Count of peripheral Flash plugin instances later marked essential by a user
+    click.
+  </description>
+</action>
+
+<action name="Flash.PluginInstanceUnthrottledByWhitelist">
+  <owner>thestig@chromium.org</owner>
+  <description>
+    Count of peripheral Flash plugin instances later marked essential by a
+    retroactive update of the whitelist. These retroactive updates are usually
+    happen at the speed of IPC and look instantaneous.
+  </description>
 </action>
 
 <action name="FocusAppMenu">