Clean up OWNERs of certain permission histograms.

Remove kcarattini@ and miguelg@, and instead, add hkamila@ and engedy@
for the following histograms:

Permissions.Action.*
ContentSettings.PermissionRequested*

Bug: None
Change-Id: I015402bf77edcf5e6a250ea3f2244eb87638a37a
Reviewed-on: https://chromium-review.googlesource.com/c/1430240Reviewed-by: Brian White <bcwhite@chromium.org>
Reviewed-by: Dominick Ng <dominickn@chromium.org>
Commit-Queue: Balazs Engedy <engedy@chromium.org>
Cr-Commit-Position: refs/heads/master@{#625419}

tools/metrics/histograms/histograms.xml

@@ -16568,9 +16568,9 @@ uploading your change for review.
 </histogram>
 
 <histogram name="ContentSettings.PermissionRequested" enum="PermissionType">
-  <owner>kcarattini@chromium.org</owner>
   <owner>dominickn@chromium.org</owner>
-  <owner>miguelg@chromium.org</owner>
+  <owner>engedy@chromium.org</owner>
+  <owner>hkamila@chromium.org</owner>
   <summary>
     Number of times a given permission was requested by a website and the user
     has the permission set to prompt (i.e. not blocked or allowed).
@@ -16591,9 +16591,9 @@ uploading your change for review.
 
 <histogram name="ContentSettings.PermissionRequested_InsecureOrigin"
     enum="PermissionType">
-  <owner>kcarattini@chromium.org</owner>
   <owner>dominickn@chromium.org</owner>
-  <owner>miguelg@chromium.org</owner>
+  <owner>engedy@chromium.org</owner>
+  <owner>hkamila@chromium.org</owner>
   <summary>
     Number of times a given permission was requested by an insecure origin and
     the user has the permission set to prompt (i.e. not blocked or allowed).
@@ -16614,9 +16614,9 @@ uploading your change for review.
 
 <histogram name="ContentSettings.PermissionRequested_SecureOrigin"
     enum="PermissionType">
-  <owner>kcarattini@chromium.org</owner>
   <owner>dominickn@chromium.org</owner>
-  <owner>miguelg@chromium.org</owner>
+  <owner>engedy@chromium.org</owner>
+  <owner>hkamila@chromium.org</owner>
   <summary>
     Number of times a given permission was requested by a secure origin and the
     user has the permission set to prompt (i.e. not blocked or allowed).
@@ -81444,8 +81444,8 @@ uploading your change for review.
 
 <histogram name="Permissions.Action" enum="PermissionAction">
   <owner>dominickn@chromium.org</owner>
-  <owner>kcarattini@chromium.org</owner>
-  <owner>miguelg@chromium.org</owner>
+  <owner>engedy@chromium.org</owner>
+  <owner>hkamila@chromium.org</owner>
   <owner>mlamouri@chromium.org</owner>
   <summary>
     Tracks whether a permission was granted, rejected, etc. The suffix of the
@@ -81455,8 +81455,8 @@ uploading your change for review.
 
 <histogram name="Permissions.Action.InsecureOrigin" enum="PermissionAction">
   <owner>dominickn@chromium.org</owner>
-  <owner>kcarattini@chromium.org</owner>
-  <owner>miguelg@chromium.org</owner>
+  <owner>engedy@chromium.org</owner>
+  <owner>hkamila@chromium.org</owner>
   <owner>mlamouri@chromium.org</owner>
   <summary>
     Tracks whether a permission was granted, rejected, etc on an insecure
@@ -81466,8 +81466,8 @@ uploading your change for review.
 
 <histogram name="Permissions.Action.SecureOrigin" enum="PermissionAction">
   <owner>dominickn@chromium.org</owner>
-  <owner>kcarattini@chromium.org</owner>
-  <owner>miguelg@chromium.org</owner>
+  <owner>engedy@chromium.org</owner>
+  <owner>hkamila@chromium.org</owner>
   <owner>mlamouri@chromium.org</owner>
   <summary>
     Tracks whether a permission was granted, rejected, etc on a secure origin.