Wire up OOM exception to the sad tab page.

chrome/browser/ui/views/sad_tab_view.cc

Index: chrome/browser/ui/views/sad_tab_view.cc
diff --git a/chrome/browser/ui/views/sad_tab_view.cc b/chrome/browser/ui/views/sad_tab_view.cc
index 7b3c647a4f0e03dec312d001e01fff57e8d1cf23..60799d92dc96aa73293215dbaf2c1ae46ab2635a 100644
--- a/chrome/browser/ui/views/sad_tab_view.cc
+++ b/chrome/browser/ui/views/sad_tab_view.cc
@@ -112,6 +112,13 @@ SadTabView::SadTabView(WebContents* web_contents, chrome::SadTabKind kind)
                    <<  web_contents->GetURL().GetOrigin().spec();
       break;
     }
+    case chrome::SAD_TAB_KIND_OOM: {
+      static int crashed_due_to_oom = 0;
+      crashed_due_to_oom++;
+      UMA_HISTOGRAM_CUSTOM_COUNTS(

[Alexei Svitkine (slow), 2016/07/25 20:39:00]

This is UMA_HISTOGRAM_COUNTS_1000().

[Will Harris, 2016/07/25 20:47:53]

Done.

+          "Tabs.SadTab.OomCreated", crashed_due_to_oom, 1, 1000, 50);
+      break;
+    }
 #if defined(OS_CHROMEOS)
     case chrome::SAD_TAB_KIND_KILLED_BY_OOM: {
       RecordKillCreated();
@@ -166,6 +173,8 @@ SadTabView::SadTabView(WebContents* web_contents, chrome::SadTabKind kind)
   if (kind_ == chrome::SAD_TAB_KIND_KILLED_BY_OOM)
     message_id = IDS_KILLED_TAB_BY_OOM_MESSAGE;
 #endif
+  if (kind_ == chrome::SAD_TAB_KIND_OOM)
+    message_id = IDS_SAD_TAB_OOM_MESSAGE;
 
   message_ = CreateLabel(l10n_util::GetStringUTF16(message_id));
 
@@ -252,6 +261,12 @@ void SadTabView::OnPaint(gfx::Canvas* canvas) {
             "Tabs.SadTab.CrashDisplayed", ++crashed, 1, 1000, 50);
         break;
       }
+      case chrome::SAD_TAB_KIND_OOM: {
+        static int crashed_due_to_oom = 0;
+        UMA_HISTOGRAM_CUSTOM_COUNTS(
+            "Tabs.SadTab.OomDisplayed", ++crashed_due_to_oom, 1, 1000, 50);
+        break;
+      }
       case chrome::SAD_TAB_KIND_KILLED:
         RecordKillDisplayed();
         break;