Change return type of the printPage

Source/web/tests/WebPluginContainerTest.cpp

 /*
  * Copyright (C) 2012 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
@@ skipping 75 matching lines @@
         : FakeWebPlugin(frame, params)
     {
         m_testClient = testClient;
     }
 
     bool hasSelection() const override { return true; }
     WebString selectionAsText() const override { return WebString("x"); }
     WebString selectionAsMarkup() const override { return WebString("y"); }
     bool supportsPaginatedPrint() override { return true; }
     int printBegin(const WebPrintParams& printParams) override { return 1; }
-    void printPage(int pageNumber, WebCanvas*, bool unused) override;
+    void printPage(int pageNumber, WebCanvas*) override;
 private:
     TestPluginWebFrameClient* m_testClient;
 };
 
 class TestPluginWebFrameClient : public FrameTestHelpers::TestWebFrameClient {
     WebPlugin* createPlugin(WebLocalFrame* frame, const WebPluginParams& params) override
     {
         if (params.mimeType == WebString::fromUTF8("application/x-webkit-test-webplugin"))
             return new TestPlugin(frame, params, this);
         if (params.mimeType == WebString::fromUTF8("application/pdf"))
             return new TestPlugin(frame, params, this);
         return WebFrameClient::createPlugin(frame, params);
     }
 
 public:
     void onPrintPage() { m_printedPage = true; }
     bool printedAtLeastOnePage() { return m_printedPage; }
 
 private:
     bool m_printedPage = false;
 };
 
-void TestPlugin::printPage(int pageNumber, WebCanvas* canvas, bool unused)
+void TestPlugin::printPage(int pageNumber, WebCanvas* canvas)
 {
     ASSERT(m_testClient);
     m_testClient->onPrintPage();
 }
 
 WebPluginContainer* getWebPluginContainer(WebView* webView, const WebString& id)
 {
     WebElement element = webView->mainFrame()->document().getElementById(id);
     return element.pluginContainer();
 }
@@ skipping 245 matching lines @@
     WebRect rect = pluginContainerImpl->element().boundsInViewportSpace();
     EXPECT_TRUE(pluginContainerImpl->isRectTopmost(rect));
 
     // Cause the plugin's frame to be detached.
     webViewHelper.reset();
 
     EXPECT_FALSE(pluginContainerImpl->isRectTopmost(rect));
 }
 
 } // namespace blink