Collect metrics on running Accessibility services on Android

content/browser/accessibility/browser_accessibility_manager_android.h

Index: content/browser/accessibility/browser_accessibility_manager_android.h
diff --git a/content/browser/accessibility/browser_accessibility_manager_android.h b/content/browser/accessibility/browser_accessibility_manager_android.h
index a9b56c1a21b968918653fa19963577b4fd62802f..ddd48a62bf2f9e33ec9683715a0449a7a634a136 100644
--- a/content/browser/accessibility/browser_accessibility_manager_android.h
+++ b/content/browser/accessibility/browser_accessibility_manager_android.h
@@ -260,7 +260,9 @@ class CONTENT_EXPORT BrowserAccessibilityManagerAndroid
  private:
   BrowserAccessibilityAndroid* GetFromUniqueID(int32_t unique_id);
 
-   base::android::ScopedJavaLocalRef<jobject> GetJavaRefFromRootManager();
+  base::android::ScopedJavaLocalRef<jobject> GetJavaRefFromRootManager();
+
+  void CollectStats();
 
   // This gives BrowserAccessibilityManager::Create access to the class
   // constructor.