Add Memory.{Browser,Renderer}.Large2 metrics

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 f1e3d04e3c5d03b1305096ebbf1967cbf1fad0f1..446c940649586324de7cfb0ffbd7450b635a6ba3 100644
--- a/tools/metrics/histograms/histograms.xml
+++ b/tools/metrics/histograms/histograms.xml
@@ -23317,6 +23317,9 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
   <owner>hajimehoshi@chromium.org</owner>
   <owner>kenjibaheux@google.com</owner>
   <owner>kouhei@chromium.org</owner>
+  <obsolete>
+    Deprecated 07/2016 and replaced with Memory.Browser.Large2.
+  </obsolete>
   <summary>
     The private working set used by the browser process.  Recorded once per UMA
     ping.  Note the existence of Memory.Browser.Large, which doesn't have
@@ -23326,6 +23329,19 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
 
 <histogram name="Memory.Browser.Large" units="MB">
   <owner>erikchen@chromium.org</owner>
+  <obsolete>
+    Deprecated 07/2016 as it reports wrong numbers. crbug.com/629354. Replaced
+    with Memory.Browser.Large2
+  </obsolete>
+  <summary>
+    The private working set used by the browser process.  Recorded once per UMA
+    ping.
+  </summary>
+</histogram>
+
+<histogram name="Memory.Browser.Large2" units="MB">
+  <owner>bashi@chromium.org</owner>
+  <owner>kouhei@chromium.org</owner>
   <summary>
     The private working set used by the browser process.  Recorded once per UMA
     ping.
@@ -23654,6 +23670,18 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
   <owner>hajimehoshi@chromium.org</owner>
   <owner>kenjibaheux@google.com</owner>
   <owner>kouhei@chromium.org</owner>
+  <obsolete>
+    Deprecated 07/2016 and replaced with Memory.Renderer.Large2.
+  </obsolete>
+  <summary>
+    The private working set used by each renderer process.  Each renderer
+    process provides one sample.  Recorded once per UMA ping.
+  </summary>
+</histogram>
+
+<histogram name="Memory.Renderer.Large2" units="MB">
+  <owner>bashi@chromium.org</owner>
+  <owner>kouhei@chromium.org</owner>
   <summary>
     The private working set used by each renderer process.  Each renderer
     process provides one sample.  Recorded once per UMA ping.