[chromedriver] Support clicking an element in sub frames.

chrome/test/chromedriver/session.cc

 // Copyright (c) 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.
 
 #include "chrome/test/chromedriver/session.h"
 
 #include <list>
 
 #include "base/sys_info.h"
 #include "base/values.h"
@@ skipping 34 matching lines @@
   for (std::list<WebView*>::const_iterator it = web_views.begin();
        it != web_views.end(); ++it) {
     if ((*it)->GetId() == window) {
       *web_view = *it;
       return Status(kOk);
     }
   }
   return Status(kNoSuchWindow, "target window already closed");
 }
 
+void Session::SetToFrame(const std::string& new_frame,
+                         const std::string& xpath) {
+  if (new_frame.empty()) {
+    frame = "";
+    frame_elements.clear();
+  } else {
+    frame_elements.push_back(FrameInfo(frame, xpath));
+    frame = new_frame;
+  }
+}
+
 scoped_ptr<base::DictionaryValue> Session::CreateCapabilities() {
   scoped_ptr<base::DictionaryValue> caps(new base::DictionaryValue());
   caps->SetString("browserName", "chrome");
   caps->SetString("version", chrome->GetVersion());
   caps->SetString("driverVersion", kChromeDriverVersion);
   caps->SetString("platform", base::SysInfo::OperatingSystemName());
   caps->SetBoolean("javascriptEnabled", true);
   caps->SetBoolean("takesScreenshot", true);
   caps->SetBoolean("handlesAlerts", true);
   caps->SetBoolean("databaseEnabled", true);
@@ skipping 10 matching lines @@
 
 SessionAccessorImpl::SessionAccessorImpl(scoped_ptr<Session> session)
     : session_(session.Pass()) {}
 
 Session* SessionAccessorImpl::Access(scoped_ptr<base::AutoLock>* lock) {
   lock->reset(new base::AutoLock(session_lock_));
   return session_.get();
 }
 
 SessionAccessorImpl::~SessionAccessorImpl() {}