Move the user interaction policy for FirstMeaningfulPaint UMA into renderer

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 b155d0f40b478c4ef52102ad9ad0193734164046..44f675eaa3ee6f86ad62e83a1498a6ae33cbea73 100644
--- a/tools/metrics/histograms/histograms.xml
+++ b/tools/metrics/histograms/histograms.xml
@@ -49597,6 +49597,9 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
 <histogram
     name="PageLoad.Experimental.PaintTiming.FirstMeaningfulPaintSignalStatus2"
     enum="FirstMeaningfulPaintSignalStatus">
+  <obsolete>
+    Deprecated as of 05/17/2017.
+  </obsolete>
   <owner>ksakamoto@chromium.org</owner>
   <summary>
     Whether the user had any interaction on the page (except mouse move) after
@@ -49618,6 +49621,9 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
 <histogram
     name="PageLoad.Experimental.PaintTiming.FirstMeaningfulPaintToNetworkStable"
     units="ms">
+  <obsolete>
+    Deprecated as of 05/17/2017.
+  </obsolete>
   <owner>ksakamoto@chromium.org</owner>
   <summary>
     Measures the time between when the first meaningful paint
@@ -49828,6 +49834,16 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
   </summary>
 </histogram>
 
+<histogram
+    name="PageLoad.Internal.PaintTiming.HadUserInputBeforeFirstMeaningfulPaint"
+    enum="HadUserInput">
+  <owner>ksakamoto@chromium.org</owner>
+  <summary>
+    Whether the user had any interaction on the page before
+    FirstMeaningfulPaint. Recorded when the page load reached network idle.

[Ilya Sherman, 2017/06/15 03:40:20]

nit: s/reached/reaches

[Kunihiko Sakamoto, 2017/06/15 03:53:57]

Done.

+  </summary>
+</histogram>
+
 <histogram name="PageLoad.Internal.Prerender" enum="BooleanHit">
   <owner>bmcquade@chromium.org</owner>
   <summary>
@@ -89079,6 +89095,9 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
 </histogram_suffixes>
 
 <histogram_suffixes name="HadUserInput" separator=".">
+  <obsolete>
+    Deprecated as of 05/17/2017.
+  </obsolete>
   <suffix name="HadUserInput" label="Had user input"/>
   <suffix name="NoUserInput" label="No user input"/>
   <affected-histogram