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 1f7ad6f405204985db0851d3ca630e044b32d33f..d7995a564e10c894582de2389a5dff6333fdab79 100644
--- a/tools/metrics/histograms/histograms.xml
+++ b/tools/metrics/histograms/histograms.xml
@@ -12830,6 +12830,15 @@ Therefore, the affected-histogram name has to have at least one dot in it.
   </summary>
 </histogram>
 
+<histogram name="InputMethod.VirtualKeyboard.BackwardsMovesPerSwipe">

[Mark P, 2015/05/12 19:34:02]

units=?

[rsadam, 2015/05/12 20:43:05]

Done.

+  <owner>rsadam@chromium.org</owner>
+  <summary>
+    Counts the number of times the cursor was moved to the previous word by

[Mark P, 2015/05/12 19:34:02]

This description is confusing.  I can't tell if this is a histogram that gets a
value of 1 submitted to it when the cursor moves to a previous word (and maybe
this action implicitly causes the selection track to be hidden?) or this
histogram gets a value of x submitted to it when the selection track is hidden,
and that x is the number of times the cursor moved to previous words in between
the selection track opening and it getting hidden.  Maybe the units field would
help.  Regardless, I think something needs to be rewritten a bit here.

[rsadam, 2015/05/12 20:43:05]

The answer is the latter. I rewrote the description, hopefully it's a lot
clearer.

+    swiping on the selection track. This is recorded each time the gesture
+    selection track is hidden.

[Mark P, 2015/05/12 19:34:02]

Is this only recorded on Android?  All mobile platforms?  Something else?

[rsadam, 2015/05/12 20:43:05]

ChromeOS only, added to the description.

+  </summary>
+</histogram>
+
 <histogram name="InputMethod.VirtualKeyboard.CharactersBetweenBackspaces">
   <owner>rsadam@chromium.org</owner>
   <summary>
@@ -12875,6 +12884,15 @@ Therefore, the affected-histogram name has to have at least one dot in it.
   </summary>
 </histogram>
 
+<histogram name="InputMethod.VirtualKeyboard.MovesPerSwipe">
+  <owner>rsadam@chromium.org</owner>
+  <summary>
+    Counts the number of times the cursor was moved to the next word by swiping
+    on the selection track. This is recorded each time the gesture selection
+    track is hidden.
+  </summary>
+</histogram>
+
 <histogram name="InputMethod.VirtualKeyboard.TapCount">
   <owner>stevet@chromium.org</owner>
   <summary>
@@ -12883,6 +12901,14 @@ Therefore, the affected-histogram name has to have at least one dot in it.
   </summary>
 </histogram>
 
+<histogram name="InputMethod.VirtualKeyboard.WordsDeletedPerSwipe">
+  <owner>rsadam@chromium.org</owner>
+  <summary>
+    Counts the number of words that were deleted by swiping left on the deletion
+    track. This is recorded each time the gesture deletion track is hidden.
+  </summary>
+</histogram>
+
 <histogram name="InputMethod.VirtualKeyboard.WordsPerMinute">
   <owner>rsadam@chromium.org</owner>
   <summary>
@@ -12891,6 +12917,15 @@ Therefore, the affected-histogram name has to have at least one dot in it.
   </summary>
 </histogram>
 
+<histogram name="InputMethod.VirtualKeyboard.WordsRestoredPerSwipe">
+  <owner>rsadam@chromium.org</owner>
+  <summary>
+    Counts the number of words that were restored by swiping right on the
+    deletion track. This is recorded each time the gesture deletion track is
+    hidden.
+  </summary>
+</histogram>
+
 <histogram name="Installer.AttemptsCount.Total" units="count">
   <owner>zeuthen@chromium.org</owner>
   <summary>