Adds Ash.StationaryTouchDuration to histograms.xml

tools/metrics/histograms/histograms.xml

Index: tools/metrics/histograms/histograms.xml
diff --git a/tools/metrics/histograms/histograms.xml b/tools/metrics/histograms/histograms.xml
index 443b3af0ba1586ee176759131684aa17ba32c1aa..5e13477e220a5d4d3c97e33a30684d57a6e00a53 100644
--- a/tools/metrics/histograms/histograms.xml
+++ b/tools/metrics/histograms/histograms.xml
@@ -685,6 +685,12 @@ Therefore, the affected-histogram name has to have at least one dot in it.
   </summary>
 </histogram>
 
+<histogram name="Ash.StationaryTouchDuration" units="seconds">
+  <owner>kuscher@google.com</owner>
+  <owner>rbyers@chromium.org</owner>
+  <summary>The duration of mostly stationary long-duration touches.</summary>
+</histogram>
+
 <histogram name="Ash.TouchDuration" units="milliseconds">
   <obsolete>
     Deprecated 12/2013 in r239809, and replaced by Ash.TouchDuration2.
@@ -8879,9 +8885,8 @@ Therefore, the affected-histogram name has to have at least one dot in it.
 <histogram name="Extensions.FeatureProviderStaticInitTime" units="milliseconds">
   <owner>rkaplow@chromium.org</owner>
   <summary>
-    The amount of time that elapsed during
-    extensions::FeatureProvider::Static. Only measured while in the browser
-    process.
+    The amount of time that elapsed during extensions::FeatureProvider::Static.
+    Only measured while in the browser process.
   </summary>
 </histogram>
 
@@ -19591,8 +19596,8 @@ Therefore, the affected-histogram name has to have at least one dot in it.
     enum="QuicSessionLocations">
   <owner>rch@chromium.org</owner>
   <summary>
-    The location in quic_client_session.cc where a session is unexpectedly
-    not going away.
+    The location in quic_client_session.cc where a session is unexpectedly not
+    going away.
   </summary>
 </histogram>