Update prerender policy for custom tabs

chrome/browser/prerender/prerender_histograms.cc

 // Copyright (c) 2012 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/prerender/prerender_histograms.h"
 
 #include <string>
 
 #include "base/format_macros.h"
 #include "base/metrics/histogram.h"
@@ skipping 36 matching lines @@
     case ORIGIN_LINK_REL_PRERENDER_CROSSDOMAIN:
       return ComposeHistogramName("webcross", name);
     case ORIGIN_EXTERNAL_REQUEST:
         return ComposeHistogramName("externalrequest", name);
     case ORIGIN_INSTANT:
       return ComposeHistogramName("Instant", name);
     case ORIGIN_LINK_REL_NEXT:
       return ComposeHistogramName("webnext", name);
     case ORIGIN_GWS_PRERENDER:
       return ComposeHistogramName("gws", name);
+    case ORIGIN_EXTERNAL_REQUEST_FORCED_CELLULAR:
+      return ComposeHistogramName("externalrequestforced", name);
     default:
       NOTREACHED();
       break;
   }
 
   // Dummy return value to make the compiler happy.
   NOTREACHED();
   return ComposeHistogramName("wash", name);
 }
 
@@ skipping 31 matching lines @@
   } else if (origin == ORIGIN_LINK_REL_PRERENDER_SAMEDOMAIN) { \
     HISTOGRAM; \
   } else if (origin == ORIGIN_LINK_REL_PRERENDER_CROSSDOMAIN) { \
     HISTOGRAM; \
   } else if (origin == ORIGIN_EXTERNAL_REQUEST) { \
     HISTOGRAM; \
   } else if (origin == ORIGIN_INSTANT) { \
     HISTOGRAM; \
   } else if (origin == ORIGIN_LINK_REL_NEXT) { \
     HISTOGRAM; \
+  } else if (origin == ORIGIN_EXTERNAL_REQUEST_FORCED_CELLULAR) { \
+    HISTOGRAM; \
   } else { \
     HISTOGRAM; \
   } \
 } while (0)
 
 PrerenderHistograms::PrerenderHistograms()
     : last_origin_(ORIGIN_MAX),
       origin_wash_(false),
       seen_any_pageload_(true),
       seen_pageload_started_after_prerender_(true) {
@@ skipping 273 matching lines @@
   }
 }
 
 bool PrerenderHistograms::IsOriginWash() const {
   if (!WithinWindow())
     return false;
   return origin_wash_;
 }
 
 }  // namespace prerender