Adds UMA for display color calibration in ChromeOS.

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 fe7fca64cc524148469be33c420a4354c8d0c55d..7b5fa85623b3751254c0e940803e266a8d5b512f 100644
--- a/tools/metrics/actions/actions.xml
+++ b/tools/metrics/actions/actions.xml
@@ -2006,6 +2006,12 @@ should be able to be added at any place in this file.
   <description>Please enter the description of this user action.</description>
 </action>
 
+<action name="ColorProfileChanged">
+  <owner>xiaowenx@chromium.org</owner>
+  <owner>mukai@chromium.org</owner>
+  <description>Please enter the description of the metric.</description>

[Alexei Svitkine (slow), 2014/03/26 13:02:10]

This is missing a description.

Also, does it need to be an action rather than a histogram? (the difference is
that our dashboards have better support for histograms while actions havr timing
information internally which is only accessible through custom analysis scripts)

[Jun Mukai, 2014/03/26 18:08:09]

Added the description.

Correct me if I'm wrong, but I think histogram total count is the total number
of the users who change the color profile. My intention of this action is to see
how many times users change this, because a user may change it upon a specific
situation (to choose 'movie' profile when watching videos, for example). If
histogram doesn't work in that way, I'll remove this.

[Alexei Svitkine (slow), 2014/03/26 19:18:08]

The histogram dashboard has two views.

The default view shows counts (not users), so you'd see the number of changes
total. There's a checkbox called "show user counts" that instead shows the
number of unique users that reported each bucket.

[Jun Mukai, 2014/03/26 21:17:46]

ah, got it. removed. thanks!

+</action>
+
 <action name="ConfirmNotToOrderSpringCharger">
   <owner>Please list the metric's owners. Add more owner tags as needed.</owner>
   <description>Please enter the description of this user action.</description>