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 1c0dddfa1673098ee5d118ef3e3a7224ce985900..9d30dc1c62d6488c1bf08295da1705ea690f7eff 100644
--- a/chrome/browser/policy/policy_browsertest.cc
+++ b/chrome/browser/policy/policy_browsertest.cc
@@ -1303,9 +1303,11 @@ 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));
+  content::Details<const extensions::InstalledExtensionInfo> details =
+      observer.details();
+  const extensions::Extension* extension = details->extension;
+  EXPECT_EQ(kGoodCrxId, extension->id());
+  EXPECT_EQ(extension, service->GetExtensionById(kGoodCrxId, true));
   // The user is not allowed to uninstall force-installed extensions.
   UninstallExtension(kGoodCrxId, false);
 }
@@ -1376,8 +1378,9 @@ IN_PROC_BROWSER_TEST_F(PolicyTest, ExtensionInstallSources) {
   PerformClick(1, 0);
   observer.Wait();
 
-  content::Details<const extensions::Extension> details = observer.details();
-  EXPECT_EQ(kAdBlockCrxId, details->id());
+  content::Details<const extensions::InstalledExtensionInfo> details =
+      observer.details();
+  EXPECT_EQ(kAdBlockCrxId, details->extension->id());
 
   // The first extension shouldn't be present, the second should be there.
   EXPECT_FALSE(extension_service()->GetExtensionById(kGoodCrxId, true));