EME: Close existing sessions on CDM failure

chrome/renderer/media/chrome_key_systems.cc

Index: chrome/renderer/media/chrome_key_systems.cc
diff --git a/chrome/renderer/media/chrome_key_systems.cc b/chrome/renderer/media/chrome_key_systems.cc
index 9df9fd0b579e1adc49a2265af7994b5b1acfe9eb..40c6a5b2db370ae07c2e1620ad9c365c065756b2 100644
--- a/chrome/renderer/media/chrome_key_systems.cc
+++ b/chrome/renderer/media/chrome_key_systems.cc
@@ -78,6 +78,8 @@ static void AddExternalClearKey(
       "org.chromium.externalclearkey.initializefail";
   static const char kExternalClearKeyCrashKeySystem[] =
       "org.chromium.externalclearkey.crash";
+  static const char kExternalClearKeyCloseOnCrashKeySystem[] =
+      "org.chromium.externalclearkey.closeoncrash";
 
   std::vector<base::string16> additional_param_names;
   std::vector<base::string16> additional_param_values;
@@ -116,9 +118,11 @@ static void AddExternalClearKey(
   concrete_key_systems->emplace_back(new cdm::ExternalClearKeyProperties(
       kExternalClearKeyInitializeFailKeySystem));
 
-  // A key system that triggers a crash in ClearKeyCdm.
+  // Key systems that trigger a crash in ClearKeyCdm.
   concrete_key_systems->emplace_back(
       new cdm::ExternalClearKeyProperties(kExternalClearKeyCrashKeySystem));
+  concrete_key_systems->emplace_back(new cdm::ExternalClearKeyProperties(
+      kExternalClearKeyCloseOnCrashKeySystem));
 }
 
 #if defined(WIDEVINE_CDM_AVAILABLE)