[chromedriver] Implement SwitchToFrame command.

chrome/test/chromedriver/commands_unittest.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 <string>
 
 #include "base/bind.h"
 #include "base/callback.h"
 #include "base/compiler_specific.h"
 #include "base/file_path.h"
@@ skipping 12 matching lines @@
 
 class StubChrome : public Chrome {
  public:
   StubChrome() {}
   virtual ~StubChrome() {}
 
   // Overridden from Chrome:
   virtual Status Load(const std::string& url) OVERRIDE {
     return Status(kOk);
   }
-  virtual Status EvaluateScript(const std::string& function,
+  virtual Status EvaluateScript(const std::string& frame,
+                                const std::string& function,
                                 scoped_ptr<base::Value>* result) OVERRIDE {
     return Status(kOk);
   }
-  virtual Status CallFunction(const std::string& function,
+  virtual Status CallFunction(const std::string& frame,
+                              const std::string& function,
                               const base::ListValue& args,
                               scoped_ptr<base::Value>* result) OVERRIDE {
     return Status(kOk);
   }
+  virtual Status GetFrameByFunction(const std::string& frame,
+                                    const std::string& function,
+                                    const base::ListValue& args,
+                                    std::string* out_frame) OVERRIDE {
+    return Status(kOk);
+  }
   virtual Status Quit() OVERRIDE {
     return Status(kOk);
   }
 };
 
 class OkLauncher : public ChromeLauncher {
  public:
   OkLauncher() {}
   virtual ~OkLauncher() {}
 
@@ skipping 131 matching lines @@
   SessionMap map;
   Session session("id", scoped_ptr<Chrome>(new FailsToQuitChrome()));
   map.Set(session.id,
           scoped_refptr<SessionAccessor>(new FakeSessionAccessor(&session)));
   base::DictionaryValue params;
   scoped_ptr<base::Value> value;
   ASSERT_EQ(kUnknownError, ExecuteQuit(&map, &session, params, &value).code());
   ASSERT_FALSE(map.Has(session.id));
   ASSERT_FALSE(value.get());
 }