Made it possible to tell whether an extension is being installed or updated.

chrome/browser/policy/policy_browsertest.cc

Index: chrome/browser/policy/policy_browsertest.cc
diff --git a/chrome/browser/policy/policy_browsertest.cc b/chrome/browser/policy/policy_browsertest.cc
index 3bef5048fbc66328b51c287718f731071d71f9f0..a26d733f1d66f9ccf7a16cf6f8dda5aaaa8794fa 100644
--- a/chrome/browser/policy/policy_browsertest.cc
+++ b/chrome/browser/policy/policy_browsertest.cc
@@ -1305,9 +1305,12 @@ IN_PROC_BROWSER_TEST_F(PolicyTest, ExtensionInstallForcelist) {
       content::NotificationService::AllSources());
   UpdateProviderPolicy(policies);
   observer.Wait();
-  content::Details<const extensions::Extension> details = observer.details();
-  EXPECT_EQ(kGoodCrxId, details->id());
-  EXPECT_EQ(details.ptr(), service->GetExtensionById(kGoodCrxId, true));
+  // Note: Cannot check that the notification details match the expected
+  // exception, since the details object has already been freed prior to
+  // the completion of observer.Wait().
+
+  EXPECT_TRUE(service->GetExtensionById(kGoodCrxId, true));
+
   // The user is not allowed to uninstall force-installed extensions.
   UninstallExtension(kGoodCrxId, false);
 }
@@ -1377,9 +1380,9 @@ IN_PROC_BROWSER_TEST_F(PolicyTest, ExtensionInstallSources) {
       content::NotificationService::AllSources());
   PerformClick(1, 0);
   observer.Wait();
-
-  content::Details<const extensions::Extension> details = observer.details();
-  EXPECT_EQ(kAdBlockCrxId, details->id());
+  // Note: Cannot check that the notification details match the expected
+  // exception, since the details object has already been freed prior to
+  // the completion of observer.Wait().
 
   // The first extension shouldn't be present, the second should be there.
   EXPECT_FALSE(extension_service()->GetExtensionById(kGoodCrxId, true));