Allow chrome.management.setEnabled() to re-enable crashed extensions.

chrome/browser/extensions/extension_crash_recovery_browsertest.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "base/process_util.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/extensions/extension_browsertest.h"
 #include "chrome/browser/extensions/extension_host.h"
 #include "chrome/browser/extensions/extension_process_manager.h"
 #include "chrome/browser/extensions/extension_service.h"
@@ skipping 55 matching lines @@
   size_t CountBalloons() {
     NotificationUIManager* manager =
         g_browser_process->notification_ui_manager();
     BalloonCollection::Balloons balloons =
         manager->balloon_collection()->GetActiveBalloons();
     return balloons.size();
   }
 
   void CrashExtension(std::string extension_id) {
     const Extension* extension =
-        GetExtensionService()->extensions()->GetByID(extension_id);
+        GetExtensionService()->GetExtensionById(extension_id, false);
     ASSERT_TRUE(extension);
     extensions::ExtensionHost* extension_host = GetExtensionProcessManager()->
         GetBackgroundHostForExtension(extension_id);
     ASSERT_TRUE(extension_host);
 
-    content::RenderProcessHost* extension_rph =
-        extension_host->render_view_host()->GetProcess();
-    base::KillProcess(extension_rph->GetHandle(), content::RESULT_CODE_KILLED,
-                      false);
+    base::KillProcess(extension_host->render_process_host()->GetHandle(),
+                      content::RESULT_CODE_KILLED, false);
     ASSERT_TRUE(WaitForExtensionCrash(extension_id));
     ASSERT_FALSE(GetExtensionProcessManager()->
                  GetBackgroundHostForExtension(extension_id));
   }
 
   void CheckExtensionConsistency(std::string extension_id) {
     const Extension* extension =
         GetExtensionService()->extensions()->GetByID(extension_id);
     ASSERT_TRUE(extension);
     extensions::ExtensionHost* extension_host = GetExtensionProcessManager()->
@@ skipping 393 matching lines @@
             &chrome::GetActiveWebContents(browser())->GetController()));
     chrome::Reload(browser(), CURRENT_TAB);
     observer.Wait();
   }
   // Extension should now be loaded.
   SCOPED_TRACE("after reloading the tab");
   CheckExtensionConsistency(first_extension_id_);
   ASSERT_EQ(size_before + 1, GetExtensionService()->extensions()->size());
   ASSERT_EQ(0U, CountBalloons());
 }