Treat PPAPI disconnect as a crash for plugin metrics.

chrome/browser/metrics/plugin_metrics_provider.cc

Index: chrome/browser/metrics/plugin_metrics_provider.cc
diff --git a/chrome/browser/metrics/plugin_metrics_provider.cc b/chrome/browser/metrics/plugin_metrics_provider.cc
index 136188d91b69fc280aca6b3444df607269732d49..e1ac7688141018a579a2c9f038e8160f13e3bfaf 100644
--- a/chrome/browser/metrics/plugin_metrics_provider.cc
+++ b/chrome/browser/metrics/plugin_metrics_provider.cc
@@ -366,6 +366,13 @@ void PluginMetricsProvider::BrowserChildProcessInstanceCreated(
   RecordCurrentStateWithDelay(kRecordStateDelayMs);
 }
 
+void PluginMetricsProvider::BrowserChildProcessHostDisconnected(
+      const content::ChildProcessData& data) {
+  // Treat a disconnect as a crash.
+  GetChildProcessStats(data).process_crashes++;
+  RecordCurrentStateWithDelay(kRecordStateDelayMs);
+}
+
 bool PluginMetricsProvider::RecordCurrentStateWithDelay(int delay_sec) {
   if (weak_ptr_factory_.HasWeakPtrs())
     return false;