Add support for setting password value gated on user's gesture in a page

Source/core/page/Page.cpp

 /*
  * Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013 Apple Inc. All Rights Reserved.
  * Copyright (C) 2008 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ skipping 117 matching lines @@
     , m_tabKeyCyclesThroughElements(true)
     , m_defersLoading(false)
     , m_pageScaleFactor(1)
     , m_deviceScaleFactor(1)
     , m_timerAlignmentInterval(DOMTimer::visiblePageAlignmentInterval())
     , m_visibilityState(PageVisibilityStateVisible)
     , m_isCursorVisible(true)
 #ifndef NDEBUG
     , m_isPainting(false)
 #endif
+    , m_userGestureSeenSinceLastNavigation(false)
     , m_frameHost(FrameHost::create(*this))
 {
     ASSERT(m_editorClient);
 
     ASSERT(!allPages().contains(this));
     allPages().add(this);
 
 #ifndef NDEBUG
     pageCounter.increment();
 #endif
@@ skipping 358 matching lines @@
     for (LocalFrame* frame = mainFrame(); frame; frame = frame->tree().traverseNext()) {
         if (FrameView* view = frame->view())
             view->updateAcceleratedCompositingSettings();
     }
 }
 
 void Page::didCommitLoad(LocalFrame* frame)
 {
     lifecycleNotifier().notifyDidCommitLoad(frame);
     if (m_mainFrame == frame) {
+        m_userGestureSeenSinceLastNavigation = false;
         useCounter().didCommitLoad();
         m_inspectorController->didCommitLoadForMainFrame();
     }
 }
 
 PageLifecycleNotifier& Page::lifecycleNotifier()
 {
     return static_cast<PageLifecycleNotifier&>(LifecycleContext<Page>::lifecycleNotifier());
 }
 
@@ skipping 47 matching lines @@
     , spellCheckerClient(0)
     , storageClient(0)
 {
 }
 
 Page::PageClients::~PageClients()
 {
 }
 
 } // namespace WebCore