Single pod autofocus disabled for touch view mode. Delegate class created for ash interactions.

chrome/browser/ui/webui/chromeos/login/signin_screen_handler.h

Index: chrome/browser/ui/webui/chromeos/login/signin_screen_handler.h
diff --git a/chrome/browser/ui/webui/chromeos/login/signin_screen_handler.h b/chrome/browser/ui/webui/chromeos/login/signin_screen_handler.h
index 4656185be3f26a3243b2dd894caa8c1d499df257..2cc7bd5b0ed9e9a82857a9dd142750df5799e8be 100644
--- a/chrome/browser/ui/webui/chromeos/login/signin_screen_handler.h
+++ b/chrome/browser/ui/webui/chromeos/login/signin_screen_handler.h
@@ -26,6 +26,7 @@
 #include "chrome/browser/ui/webui/chromeos/login/gaia_screen_handler.h"
 #include "chrome/browser/ui/webui/chromeos/login/network_state_informer.h"
 #include "chrome/browser/ui/webui/chromeos/login/oobe_ui.h"
+#include "chrome/browser/ui/webui/chromeos/touch_view_controller_delegate.h"
 #include "chromeos/ime/ime_keyboard.h"
 #include "chromeos/network/portal_detector/network_portal_detector.h"
 #include "components/user_manager/user_manager.h"
@@ -211,7 +212,8 @@ class SigninScreenHandler
       public content::NotificationObserver,
       public ScreenlockBridge::LockHandler,
       public NetworkStateInformer::NetworkStateInformerObserver,
-      public input_method::ImeKeyboard::Observer {
+      public input_method::ImeKeyboard::Observer,
+      public TouchViewControllerDelegate::Observer {
  public:
   SigninScreenHandler(
       const scoped_refptr<NetworkStateInformer>& network_state_informer,
@@ -325,6 +327,10 @@ class SigninScreenHandler
       const std::string& username) const OVERRIDE;
   virtual void Unlock(const std::string& user_email) OVERRIDE;
 
+  // TouchViewControllerDelegate::Observer implementation:
+  virtual void OnMaximizeModeStarted() OVERRIDE;
+  virtual void OnMaximizeModeEnded() OVERRIDE;
+
   // Updates authentication extension. Called when device settings that affect
   // sign-in (allow BWSI and allow whitelist) are changed.
   void UserSettingsChanged();
@@ -376,6 +382,7 @@ class SigninScreenHandler
   void HandleGetPublicSessionKeyboardLayouts(const std::string& user_id,
                                              const std::string& locale);
   void HandleCancelConsumerManagementEnrollment();
+  void HandleGetTouchViewState();
 
   // Sends the list of |keyboard_layouts| available for the |locale| that is
   // currently selected for the public session identified by |user_id|.
@@ -488,6 +495,9 @@ class SigninScreenHandler
   // Helper that retrieves the authenticated user's e-mail address.
   scoped_ptr<AuthenticatedUserEmailRetriever> email_retriever_;
 
+  // Maximized mode controller delegate.
+  scoped_ptr<TouchViewControllerDelegate> max_mode_delegate_;
+
   // Whether consumer management enrollment is in progress.
   bool is_enrolling_consumer_management_;