extensions/browser/process_manager_delegate.h

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef EXTENSIONS_BROWSER_PROCESS_MANAGER_DELEGATE_H_
   6 #define EXTENSIONS_BROWSER_PROCESS_MANAGER_DELEGATE_H_
   7
   8 namespace content {
   9 class BrowserContext;
  10 };
  11
  12 namespace extensions {
  13
  14 // Customization of ProcessManager for the extension system embedder.
  15 class ProcessManagerDelegate {
  16  public:
  17   virtual ~ProcessManagerDelegate() {}
  18
  19   // Returns true if the embedder allows background pages for the given
  20   // |context|.
  21   virtual bool IsBackgroundPageAllowed(
  22       content::BrowserContext* context) const = 0;
  23
  24   // Returns true if the embedder wishes to defer starting up the renderers for
  25   // extension background pages. If the embedder returns true it must call
  26   // ProcessManager::MaybeCreateStartupBackgroundHosts() when it is ready. See
  27   // ChromeProcessManagerDelegate for examples of how this is useful.
  28   virtual bool DeferCreatingStartupBackgroundHosts(
  29       content::BrowserContext* context) const = 0;
  30 };
  31
  32 }  // namespace extensions
  33
  34 #endif  // EXTENSIONS_BROWSER_PROCESS_MANAGER_DELEGATE_H_