Add memory and CPU histogram for OOPIF

chrome/browser/metrics/metrics_memory_details.cc

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/metrics/metrics_memory_details.h"
 
 #include <stddef.h>
 
 #include <vector>
 
@@ skipping 84 matching lines @@
     switch (browser.processes[index].process_type) {
       case content::PROCESS_TYPE_BROWSER:
         UMA_HISTOGRAM_MEMORY_LARGE_MB("Memory.Browser.Large2", sample / 1024);
         UMA_HISTOGRAM_MEMORY_LARGE_MB("Memory.Browser.Committed",
                                       committed / 1024);
         continue;
       case content::PROCESS_TYPE_RENDERER: {
         UMA_HISTOGRAM_MEMORY_LARGE_MB("Memory.RendererAll", sample / 1024);
         UMA_HISTOGRAM_MEMORY_LARGE_MB("Memory.RendererAll.Committed",
                                       committed / 1024);
+        if (browser.processes[index].contains_oopif)
+          UMA_HISTOGRAM_MEMORY_KB("SiteIsolation.Oopif.Memory", sample);
         ProcessMemoryInformation::RendererProcessType renderer_type =
             browser.processes[index].renderer_type;
         switch (renderer_type) {
           case ProcessMemoryInformation::RENDERER_EXTENSION:
             UMA_HISTOGRAM_MEMORY_KB("Memory.Extension", sample);
             extension_count++;
             continue;
           case ProcessMemoryInformation::RENDERER_CHROME:
             UMA_HISTOGRAM_MEMORY_KB("Memory.Chrome", sample);
             chrome_count++;
@@ skipping 202 matching lines @@
         memory_growth_tracker_->UpdateSample(process_entry.pid, sample,
                                              &diff) &&
         generate_histograms_) {
       if (diff < 0)
         UMA_HISTOGRAM_MEMORY_KB("Memory.RendererShrinkIn30Min", -diff);
       else
         UMA_HISTOGRAM_MEMORY_KB("Memory.RendererGrowthIn30Min", diff);
     }
   }
 }