Prevent unnecessary prompts when unpacked extensions use chrome.permissions.request.

chrome/browser/extensions/unpacked_installer.cc

Index: chrome/browser/extensions/unpacked_installer.cc
diff --git a/chrome/browser/extensions/unpacked_installer.cc b/chrome/browser/extensions/unpacked_installer.cc
index eabbfe6a34e0a409d0608725f79d37d9f2882ff1..c64ac970a50320f62a80d2f9e3f2fa3274188a1b 100644
--- a/chrome/browser/extensions/unpacked_installer.cc
+++ b/chrome/browser/extensions/unpacked_installer.cc
@@ -10,6 +10,7 @@
 #include "chrome/browser/extensions/extension_install_ui.h"
 #include "chrome/browser/extensions/extension_prefs.h"
 #include "chrome/browser/extensions/extension_service.h"
+#include "chrome/browser/extensions/permissions_updater.h"
 #include "chrome/common/extensions/extension.h"
 #include "chrome/common/extensions/extension_file_util.h"
 #include "chrome/common/string_ordinal.h"
@@ -55,9 +56,12 @@ void SimpleExtensionLoadPrompt::ShowPrompt() {
 }
 
 void SimpleExtensionLoadPrompt::InstallUIProceed() {
-  if (service_weak_.get())
+  if (service_weak_.get()) {
+    extensions::PermissionsUpdater perms_updater(service_weak_->profile());
+    perms_updater.GrantActivePermissions(extension_);
     service_weak_->OnExtensionInstalled(
         extension_, false, StringOrdinal());  // Not from web store.
+  }
   delete this;
 }
 
@@ -199,7 +203,7 @@ void UnpackedInstaller::OnLoaded(
       service_weak_->disabled_extensions();
   if (service_weak_->show_extensions_prompts() &&
       prompt_for_plugins_ &&
-      !extension->plugins().empty() &&
+      !extension->CanSilentlyIncreasePermissionsDuringInstall() &&
       disabled_extensions->Contains(extension->id())) {
     SimpleExtensionLoadPrompt* prompt = new SimpleExtensionLoadPrompt(
         service_weak_->profile(),
@@ -208,6 +212,9 @@ void UnpackedInstaller::OnLoaded(
     prompt->ShowPrompt();
     return;  // continues in SimpleExtensionLoadPrompt::InstallUI*
   }
+
+  PermissionsUpdater perms_updater(service_weak_->profile());
+  perms_updater.GrantActivePermissions(extension);
   service_weak_->OnExtensionInstalled(extension,
                                       false,  // Not from web store.
                                       StringOrdinal());