Enable spare RenderProcessHost to be preinitialized.

content/public/test/mock_render_process_host.h

 // 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.
 
 #ifndef CONTENT_PUBLIC_TEST_MOCK_RENDER_PROCESS_HOST_H_
 #define CONTENT_PUBLIC_TEST_MOCK_RENDER_PROCESS_HOST_H_
 
 #include <stddef.h>
 #include <stdint.h>
 #include <memory>
@@ skipping 182 matching lines @@
   ~MockRenderProcessHostFactory() override;
 
   RenderProcessHost* CreateRenderProcessHost(
       BrowserContext* browser_context) const override;
 
   // Removes the given MockRenderProcessHost from the MockRenderProcessHost list
   // without deleting it. When a test deletes a MockRenderProcessHost, we need
   // to remove it from |processes_| to prevent it from being deleted twice.
   void Remove(MockRenderProcessHost* host) const;
 
+  // Retrieve the current list of mock processes.
+  std::vector<std::unique_ptr<MockRenderProcessHost>>* GetProcesses() {
+    return &processes_;
+  }
+
  private:
   // A list of MockRenderProcessHosts created by this object. This list is used
   // for deleting all MockRenderProcessHosts that have not deleted by a test in
   // the destructor and prevent them from being leaked.
   mutable std::vector<std::unique_ptr<MockRenderProcessHost>> processes_;
 
   DISALLOW_COPY_AND_ASSIGN(MockRenderProcessHostFactory);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_TEST_MOCK_RENDER_PROCESS_HOST_H_