[Safety Tips] s/NoActionTaken/NoAction in histogram names.

Safety Tips have always recorded histogram names based on NoAction, but
histograms.xml has had NoActionTaken. That made it look like
NoActionTaken just never happened. I now know better. This change
lets us see the existing data from the dashboard. :-(

The code in question is at:
https://source.chromium.org/chromium/chromium/src/+/master:chrome/browser/reputation/reputation_web_contents_observer.cc;l=69?q=Security.SafetyTips.Interaction&ss=chromium

Change-Id: I2cc79ffaf70e962b24f34635e698db3aa145083a
Fixed: 1137615
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2466512
Auto-Submit: Joe DeBlasio <jdeblasio@chromium.org>
Commit-Queue: Ilya Sherman <isherman@chromium.org>
Reviewed-by: Ilya Sherman <isherman@chromium.org>
Cr-Commit-Position: refs/heads/master@{#816495}

tools/metrics/histograms/histograms_xml/histogram_suffixes_list.xml

@@ -16140,7 +16140,7 @@ reviews. Googlers can read more about this at go/gwsq-gerrit.
   <affected-histogram name="Security.SafetyTips.OpenTime.DismissWithEsc"/>
   <affected-histogram name="Security.SafetyTips.OpenTime.DismissWithIgnore"/>
   <affected-histogram name="Security.SafetyTips.OpenTime.LeaveSite"/>
-  <affected-histogram name="Security.SafetyTips.OpenTime.NoActionTaken"/>
+  <affected-histogram name="Security.SafetyTips.OpenTime.NoAction"/>
   <affected-histogram name="Security.SafetyTips.PageInfo.Action"/>
   <affected-histogram name="Security.SiteEngagement"/>
   <affected-histogram name="Security.SiteEngagementDelta"/>

tools/metrics/histograms/histograms_xml/security/histograms.xml

@@ -320,7 +320,7 @@ reviews. Googlers can read more about this at go/gwsq-gerrit.
   </summary>
 </histogram>
 
-<histogram name="Security.SafetyTips.OpenTime.NoActionTaken" units="ms"
+<histogram name="Security.SafetyTips.OpenTime.NoAction" units="ms"
     expires_after="M90">
   <owner>jdeblasio@chromium.org</owner>
   <owner>estark@chromium.org</owner>