Plumb preamble log data from the hotword extension into the speech recognizer.

chrome/browser/ui/app_list/app_list_service.h

 // Copyright 2013 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 CHROME_BROWSER_UI_APP_LIST_APP_LIST_SERVICE_H_
 #define CHROME_BROWSER_UI_APP_LIST_APP_LIST_SERVICE_H_
 
 #include <string>
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
+#include "base/memory/ref_counted.h"
 #include "chrome/browser/ui/host_desktop.h"
 #include "ui/gfx/native_widget_types.h"
 
 class AppListControllerDelegate;
 class PrefRegistrySimple;
 class Profile;
 
 namespace base {
 class CommandLine;
 class FilePath;
 }
 
+namespace content {
+struct SpeechRecognitionSessionPreamble;
+}
+
 namespace gfx {
 class ImageSkia;
 }
 
 class AppListService {
  public:
   // Source that triggers the app launcher being enabled. This is used for UMA
   // to track discoverability of the app lancher shortcut after install. Also
   // used to provide custom install behavior (e.g. "always" enable).
   enum AppListEnableSource {
@@ skipping 38 matching lines @@
   // current browser process.
   virtual void Show() = 0;
 
   // Show the app list for the given profile. If it differs from the profile the
   // app list is currently showing, repopulate the app list and save the new
   // profile to local prefs as the default app list profile.
   virtual void ShowForProfile(Profile* requested_profile) = 0;
 
   // Shows the app list, and switches to voice search. Used by always-on
   // hotwording.
-  virtual void ShowForVoiceSearch(Profile* profile) = 0;
+  virtual void ShowForVoiceSearch(
+      Profile* profile,
+      const scoped_refptr<content::SpeechRecognitionSessionPreamble>& preamble)
+      = 0;
 
   // Shows the app list, and reveals the page that contains |extension_id|. This
   // should only be called for things that show in the app list, and only when
   // they begin or complete installing. If |start_discovery_tracking| is set,
   // the app launcher will not actually be shown, but will start tracking UMA
   // for app launcher discovery.
   virtual void ShowForAppInstall(Profile* profile,
                                  const std::string& extension_id,
                                  bool start_discovery_tracking) = 0;
 
@@ skipping 28 matching lines @@
   virtual ~AppListService() {}
 
   // Do any once off initialization needed for the app list.
   virtual void Init(Profile* initial_profile) = 0;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(AppListService);
 };
 
 #endif  // CHROME_BROWSER_UI_APP_LIST_APP_LIST_SERVICE_H_