Add Erik and myself as owner for memory metrics

Some metrics are owned by Erik and some by me depending on when it was
added. Just add both to all metrics.

Change-Id: Id586f13cfbaf8036d23b31169f16c1bae1d270f6
Reviewed-on: https://chromium-review.googlesource.com/1106611Reviewed-by: Erik Chen <erikchen@chromium.org>
Reviewed-by: Ilya Sherman <isherman@chromium.org>
Commit-Queue: Ilya Sherman <isherman@chromium.org>
Cr-Commit-Position: refs/heads/master@{#568612}

tools/metrics/histograms/histograms.xml

@@ -42607,6 +42607,7 @@ uploading your change for review.
 <!-- Name completed by histogram_suffixes name="ProcessMemoryAllocator2" -->
 
   <owner>erikchen@chromium.org</owner>
+  <owner>ssid@chromium.org</owner>
   <summary>
     The browser process's memory usage reported by the memory instrumentation
     service in MB.
@@ -42616,6 +42617,7 @@ uploading your change for review.
 <histogram base="true" name="Memory.Experimental.Browser2.Small" units="KB">
 <!-- Name completed by histogram_suffixes name="ProcessMemoryAllocatorSmall2" -->
 
+  <owner>erikchen@chromium.org</owner>
   <owner>ssid@chromium.org</owner>
   <summary>
     The browser process's memory usage reported by the memory instrumentation
@@ -42697,6 +42699,7 @@ uploading your change for review.
 <!-- Name completed by histogram_suffixes name="ProcessMemoryAllocator2" -->
 
   <owner>erikchen@chromium.org</owner>
+  <owner>ssid@chromium.org</owner>
   <summary>
     The extension process's memory usage reported by the memory instrumentation
     service in MB.
@@ -42706,6 +42709,7 @@ uploading your change for review.
 <histogram base="true" name="Memory.Experimental.Extension2.Small" units="KB">
 <!-- Name completed by histogram_suffixes name="ProcessMemoryAllocatorSmall2" -->
 
+  <owner>erikchen@chromium.org</owner>
   <owner>ssid@chromium.org</owner>
   <summary>
     The extension process's memory usage reported by the memory instrumentation
@@ -42738,6 +42742,7 @@ uploading your change for review.
 <!-- Name completed by histogram_suffixes name="ProcessMemoryAllocator2" -->
 
   <owner>erikchen@chromium.org</owner>
+  <owner>ssid@chromium.org</owner>
   <summary>
     The gpu process's memory usage reported by the memory instrumentation
     service in MB.
@@ -42747,6 +42752,7 @@ uploading your change for review.
 <histogram base="true" name="Memory.Experimental.Gpu2.Small" units="KB">
 <!-- Name completed by histogram_suffixes name="ProcessMemoryAllocatorSmall2" -->
 
+  <owner>erikchen@chromium.org</owner>
   <owner>ssid@chromium.org</owner>
   <summary>
     The gpu process's memory usage reported by the memory instrumentation
@@ -42948,6 +42954,7 @@ uploading your change for review.
 <!-- Name completed by histogram_suffixes name="ProcessMemoryAllocator2" -->
 
   <owner>erikchen@chromium.org</owner>
+  <owner>ssid@chromium.org</owner>
   <summary>
     The renderer process's memory usage reported by the memory instrumentation
     service in MB.
@@ -42957,6 +42964,7 @@ uploading your change for review.
 <histogram base="true" name="Memory.Experimental.Renderer2.Small" units="KB">
 <!-- Name completed by histogram_suffixes name="ProcessMemoryAllocatorSmall2" -->
 
+  <owner>erikchen@chromium.org</owner>
   <owner>ssid@chromium.org</owner>
   <summary>
     The renderer process's memory usage reported by the memory instrumentation
@@ -42999,6 +43007,7 @@ uploading your change for review.
 
 <histogram name="Memory.Experimental.Total2.PrivateMemoryFootprint" units="MB">
   <owner>erikchen@chromium.org</owner>
+  <owner>ssid@chromium.org</owner>
   <summary>
     A rough estimate of the private memory footprint of all processes.
   </summary>
@@ -43019,6 +43028,7 @@ uploading your change for review.
 
 <histogram name="Memory.Extension.PrivateMemoryFootprint" units="MB">
   <owner>erikchen@chromium.org</owner>
+  <owner>ssid@chromium.org</owner>
   <summary>
     A rough estimate of the private memory footprint of the extension process.
     Recorded once per process per UMA ping.
@@ -43027,6 +43037,7 @@ uploading your change for review.
 
 <histogram name="Memory.Extension.SharedMemoryFootprint" units="MB">
   <owner>erikchen@chromium.org</owner>
+  <owner>ssid@chromium.org</owner>
   <summary>
     A rough estimate of the shared memory footprint of the extension process.
     Recorded once per process per UMA ping.
@@ -43077,6 +43088,7 @@ uploading your change for review.
 
 <histogram name="Memory.Gpu.PrivateMemoryFootprint" units="MB">
   <owner>erikchen@chromium.org</owner>
+  <owner>ssid@chromium.org</owner>
   <summary>
     A rough estimate of the private memory footprint of the gpu process.
     Recorded once per UMA ping.
@@ -43094,6 +43106,7 @@ uploading your change for review.
 
 <histogram name="Memory.Gpu.SharedMemoryFootprint" units="MB">
   <owner>erikchen@chromium.org</owner>
+  <owner>ssid@chromium.org</owner>
   <summary>
     A rough estimate of the shared memory footprint of the gpu process. Recorded
     once per UMA ping.
@@ -43427,6 +43440,7 @@ uploading your change for review.
 
 <histogram name="Memory.Renderer.PrivateMemoryFootprint" units="MB">
   <owner>erikchen@chromium.org</owner>
+  <owner>ssid@chromium.org</owner>
   <summary>
     A rough estimate of the private memory footprint of the renderer process.
     Recorded once per process per UMA ping.
@@ -43435,6 +43449,7 @@ uploading your change for review.
 
 <histogram name="Memory.Renderer.SharedMemoryFootprint" units="MB">
   <owner>erikchen@chromium.org</owner>
+  <owner>ssid@chromium.org</owner>
   <summary>
     A rough estimate of the shared memory footprint of the renderer process.
     Recorded once per process per UMA ping.
@@ -44000,6 +44015,7 @@ uploading your change for review.
 
 <histogram name="Memory.Total.PrivateMemoryFootprint" units="MB">
   <owner>erikchen@chromium.org</owner>
+  <owner>ssid@chromium.org</owner>
   <summary>
     A rough estimate of the private memory footprint of all processes. Recorded
     once per UMA ping.
@@ -44008,6 +44024,7 @@ uploading your change for review.
 
 <histogram name="Memory.Total.SharedMemoryFootprint" units="MB">
   <owner>erikchen@chromium.org</owner>
+  <owner>ssid@chromium.org</owner>
   <summary>
     A rough estimate of the shared memory footprint of all processes. Recorded
     once per UMA ping.