Re-land: Toggle spoken feedback if two fingers are held down.

chrome/browser/ui/ash/chrome_shell_delegate.cc

Index: chrome/browser/ui/ash/chrome_shell_delegate.cc
diff --git a/chrome/browser/ui/ash/chrome_shell_delegate.cc b/chrome/browser/ui/ash/chrome_shell_delegate.cc
index 2f1d12e8a0d13df9abd4f55fe091aab9a1190280..a452d0a1c341ffe13f1ca5061d30c42b5271c9c1 100644
--- a/chrome/browser/ui/ash/chrome_shell_delegate.cc
+++ b/chrome/browser/ui/ash/chrome_shell_delegate.cc
@@ -317,6 +317,16 @@ class AccessibilityDelegateImpl : public ash::AccessibilityDelegate {
     return ash::A11Y_ALERT_NONE;
   }
 
+  bool ShouldToggleSpokenFeedbackViaTouch() override {
+    DCHECK(AccessibilityManager::Get());
+    return AccessibilityManager::Get()->ShouldToggleSpokenFeedbackViaTouch();
+  }
+
+  void PlaySpokenFeedbackToggleCountdown(int tick_count) override {
+    DCHECK(AccessibilityManager::Get());
+    AccessibilityManager::Get()->PlaySpokenFeedbackToggleCountdown(tick_count);
+  }
+
   void PlayEarcon(int sound_key) override {
     DCHECK(AccessibilityManager::Get());
     AccessibilityManager::Get()->PlayEarcon(