Added UMA stat for tracking accidental navigations on double tap.

content/browser/android/content_view_core_impl.h

 // Copyright 2012 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 CONTENT_BROWSER_ANDROID_CONTENT_VIEW_CORE_IMPL_H_
 #define CONTENT_BROWSER_ANDROID_CONTENT_VIEW_CORE_IMPL_H_
 
 #include <vector>
 
 #include "base/android/jni_android.h"
@@ skipping 204 matching lines @@
                             jstring jurl,
                             jint delegate);
   jboolean IsShowingInterstitialPage(JNIEnv* env, jobject obj);
 
   void AttachExternalVideoSurface(JNIEnv* env,
                                   jobject obj,
                                   jint player_id,
                                   jobject jsurface);
   void DetachExternalVideoSurface(JNIEnv* env, jobject obj, jint player_id);
   void SetAccessibilityEnabled(JNIEnv* env, jobject obj, bool enabled);
+  void SendActionAfterDoubleTapUma(JNIEnv* env, jobject obj, int type,
+                                            bool hasDelay, int count);
+  void SendDelayedTapUma(JNIEnv* env, jobject obj);
 
   // --------------------------------------------------------------------------
   // Public methods that call to Java via JNI
   // --------------------------------------------------------------------------
 
   // Creates a popup menu with |items|.
   // |multiple| defines if it should support multi-select.
   // If not |multiple|, |selected_item| sets the initially selected item.
   // Otherwise, item's "checked" flag selects it.
   void ShowSelectPopupMenu(const std::vector<MenuItem>& items,
@@ skipping 154 matching lines @@
   int device_orientation_;
 
   DISALLOW_COPY_AND_ASSIGN(ContentViewCoreImpl);
 };
 
 bool RegisterContentViewCore(JNIEnv* env);
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_ANDROID_CONTENT_VIEW_CORE_IMPL_H_