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diff --git a/Source/WebKit/chromium/tests/WebFrameTest.cpp b/Source/WebKit/chromium/tests/WebFrameTest.cpp
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+++ b/Source/WebKit/chromium/tests/WebFrameTest.cpp
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+/*
+ * Copyright (C) 2010 Google Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "config.h"
+
+#include <googleurl/src/gurl.h>
+#include <gtest/gtest.h>
+#include <webkit/support/webkit_support.h>
+#include "WebFrame.h"
+#include "WebFrameClient.h"
+#include "WebSettings.h"
+#include "WebString.h"
+#include "WebURL.h"
+#include "WebURLRequest.h"
+#include "WebURLResponse.h"
+#include "WebView.h"
+#include "v8.h"
+
+using namespace WebKit;
+
+namespace {
+
+class WebFrameTest : public testing::Test {
+public:
+    WebFrameTest()
+        : baseURL("http://www.test.com/")
+    {
+    }
+
+    virtual void TearDown()
+    {
+        webkit_support::UnregisterAllMockedURLs();
+    }
+
+    void registerMockedURLLoad(const std::string& fileName)
+    {
+        WebURLResponse response;
+        response.initialize();
+        response.setMIMEType("text/html");
+
+        std::string filePath = webkit_support::GetWebKitRootDir().utf8();
+        filePath += "/Source/WebKit/chromium/tests/data/";
+        filePath += fileName;
+
+        webkit_support::RegisterMockedURL(WebURL(GURL(baseURL + fileName)), response, WebString::fromUTF8(filePath));
+    }
+
+    void serveRequests()
+    {
+        webkit_support::ServeAsynchronousMockedRequests();
+    }
+
+    void loadFrame(WebFrame* frame, const std::string& fileName)
+    {
+        WebURLRequest urlRequest;
+        urlRequest.initialize();
+        urlRequest.setURL(WebURL(GURL(baseURL + fileName)));
+        frame->loadRequest(urlRequest);
+    }
+
+protected:
+    std::string baseURL;
+};
+
+class TestWebFrameClient : public WebFrameClient {
+};
+
+TEST_F(WebFrameTest, ContentText)
+{
+    registerMockedURLLoad("iframes_test.html");
+    registerMockedURLLoad("visible_iframe.html");
+    registerMockedURLLoad("invisible_iframe.html");
+    registerMockedURLLoad("zero_sized_iframe.html");
+
+    // Create and initialize the WebView.
+    TestWebFrameClient webFrameClient;
+    WebView* webView = WebView::create(0);
+    webView->initializeMainFrame(&webFrameClient);
+
+    loadFrame(webView->mainFrame(), "iframes_test.html");
+    serveRequests();
+
+    // Now retrieve the frames text and test it only includes visible elements.
+    std::string content = webView->mainFrame()->contentAsText(1024).utf8();
+    EXPECT_NE(std::string::npos, content.find(" visible paragraph"));
+    EXPECT_NE(std::string::npos, content.find(" visible iframe"));
+    EXPECT_EQ(std::string::npos, content.find(" invisible pararaph"));
+    EXPECT_EQ(std::string::npos, content.find(" invisible iframe"));
+    EXPECT_EQ(std::string::npos, content.find("iframe with zero size"));
+
+    webView->close();
+}
+
+TEST_F(WebFrameTest, FrameForEnteredContext)
+{
+    registerMockedURLLoad("iframes_test.html");
+    registerMockedURLLoad("visible_iframe.html");
+    registerMockedURLLoad("invisible_iframe.html");
+    registerMockedURLLoad("zero_sized_iframe.html");
+
+    // Create and initialize the WebView.
+    TestWebFrameClient webFrameClient;
+    WebView* webView = WebView::create(0);
+    webView->settings()->setJavaScriptEnabled(true);
+    webView->initializeMainFrame(&webFrameClient);
+
+    loadFrame(webView->mainFrame(), "iframes_test.html");
+    serveRequests();
+
+    v8::HandleScope scope;
+    EXPECT_EQ(webView->mainFrame(),
+              WebFrame::frameForContext(
+                  webView->mainFrame()->mainWorldScriptContext()));
+    EXPECT_EQ(webView->mainFrame()->firstChild(),
+              WebFrame::frameForContext(
+                  webView->mainFrame()->firstChild()->mainWorldScriptContext()));
+
+    webView->close();
+}
+
+}