Make it possible to set the display mode from the WebView API

Source/web/tests/WebViewTest.cpp

 /*
  * Copyright (C) 2011, 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 36 matching lines @@
 #include "core/page/Page.h"
 #include "core/paint/LayerPainter.h"
 #include "core/rendering/RenderLayer.h"
 #include "core/rendering/RenderView.h"
 #include "core/testing/URLTestHelpers.h"
 #include "platform/KeyboardCodes.h"
 #include "platform/geometry/IntSize.h"
 #include "platform/graphics/Color.h"
 #include "public/platform/Platform.h"
 #include "public/platform/WebClipboard.h"
+#include "public/platform/WebDisplayMode.h"
 #include "public/platform/WebDragData.h"
 #include "public/platform/WebSize.h"
 #include "public/platform/WebThread.h"
 #include "public/platform/WebUnitTestSupport.h"
 #include "public/web/WebAutofillClient.h"
 #include "public/web/WebContentDetectionResult.h"
 #include "public/web/WebDateTimeChooserCompletion.h"
 #include "public/web/WebDocument.h"
 #include "public/web/WebDragOperation.h"
 #include "public/web/WebElement.h"
@@ skipping 1627 matching lines @@
 private:
     int m_count;
 };
 
 WebFrame* CreateChildCounterFrameClient::createChildFrame(WebLocalFrame* parent, const WebString& frameName, WebSandboxFlags sandboxFlags)
 {
     ++m_count;
     return TestWebFrameClient::createChildFrame(parent, frameName, sandboxFlags);
 }
 
+TEST_F(WebViewTest, ChangeDisplayMode)
+{
+    WebView* webView = m_webViewHelper.initializeAndLoad("about:blank", true);
+
+    WebScriptSource source("document.querySelector('body').innerHTML = window.matchMedia('(display-mode: minimal-ui)').matches");
+
+    webView->mainFrame()->executeScript(source);
+    std::string content = webView->mainFrame()->contentAsText(5).utf8();
+    EXPECT_EQ("false", content);
+
+    webView->setDisplayMode(WebDisplayModeMinimalUi);
+    webView->mainFrame()->executeScript(source);
+    content = webView->mainFrame()->contentAsText(5).utf8();
+    EXPECT_EQ("true", content);
+}
+
 TEST_F(WebViewTest, AddFrameInCloseUnload)
 {
     CreateChildCounterFrameClient frameClient;
     URLTestHelpers::registerMockedURLFromBaseURL(WebString::fromUTF8(m_baseURL.c_str()), WebString::fromUTF8("add_frame_in_unload.html"));
     m_webViewHelper.initializeAndLoad(m_baseURL + "add_frame_in_unload.html", true, &frameClient);
     m_webViewHelper.reset();
     EXPECT_EQ(0, frameClient.count());
 }
 
 TEST_F(WebViewTest, AddFrameInCloseURLUnload)
@@ skipping 601 matching lines @@
     // Test without any preventDefault.
     client.reset();
     frame->executeScript(WebScriptSource("setTest('none');"));
     EXPECT_TRUE(tapElementById(webView, WebInputEvent::GestureTap, WebString::fromUTF8("target")));
     EXPECT_TRUE(client.getWasCalled());
 
     m_webViewHelper.reset(); // Remove dependency on locally scoped client.
 }
 
 } // namespace