Revert of Test Keeping NaCl plugins used in app background pages alive when active.

extensions/browser/process_manager.h

Index: extensions/browser/process_manager.h
diff --git a/extensions/browser/process_manager.h b/extensions/browser/process_manager.h
index f283c799e1ce9949777ac206617cdd7fd0123b08..8b48aab4abaee3a67d730c0c2957d85bda6e36d9 100644
--- a/extensions/browser/process_manager.h
+++ b/extensions/browser/process_manager.h
@@ -121,14 +121,6 @@
   // related SiteInstances.
   content::BrowserContext* GetBrowserContext() const;
 
-  // Sets callbacks for testing keepalive impulse behavior.
-  typedef base::Callback<void(const std::string& extension_id)>
-      ImpulseCallbackForTesting;
-  void SetKeepaliveImpulseCallbackForTesting(
-      const ImpulseCallbackForTesting& callback);
-  void SetKeepaliveImpulseDecrementCallbackForTesting(
-      const ImpulseCallbackForTesting& callback);
-
  protected:
   // If |context| is incognito pass the master context as |original_context|.
   // Otherwise pass the same context for both.
@@ -224,9 +216,6 @@
 
   base::Callback<void(content::DevToolsAgentHost*, bool)> devtools_callback_;
 
-  ImpulseCallbackForTesting keepalive_impulse_callback_for_testing_;
-  ImpulseCallbackForTesting keepalive_impulse_decrement_callback_for_testing_;
-
   base::WeakPtrFactory<ProcessManager> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(ProcessManager);