[Android WebView] Add a quirk to clobber initial scale in certain cases

Source/web/tests/WebFrameTest.cpp

 /*
  * 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
@@ skipping 1180 matching lines @@
 
     FrameTestHelpers::WebViewHelper webViewHelper;
     webViewHelper.initializeAndLoad(m_baseURL + "viewport-wide-2x-initial-scale.html", true, 0, &client);
     webViewHelper.webView()->settings()->setViewportEnabled(true);
     webViewHelper.webView()->setInitialPageScaleOverride(enforcedPageScalePactor);
     webViewHelper.webView()->resize(WebSize(viewportWidth, viewportHeight));
 
     EXPECT_EQ(enforcedPageScalePactor, webViewHelper.webView()->pageScaleFactor());
 }
 
+TEST_F(WebFrameTest, SmallPermanentInitialPageScaleFactorIsClobberedWithDeviceWidth)
+{
+    UseMockScrollbarSettings mockScrollbarSettings;
+    registerMockedHttpURLLoad("viewport-device-0.5x-initial-scale.html");
+
+    FixedLayoutTestWebViewClient client;
+    client.m_screenInfo.deviceScaleFactor = 1;
+    int viewportWidth = 640;
+    int viewportHeight = 480;
+    float enforcedPageScalePactor = 0.75f;
+    float pageScaleFactor = 0.5f;
+
+    {
+        FrameTestHelpers::WebViewHelper webViewHelper;
+        webViewHelper.initializeAndLoad(m_baseURL + "viewport-device-0.5x-initial-scale.html", true, 0, &client);
+        webViewHelper.webView()->settings()->setViewportEnabled(true);
+        webViewHelper.webView()->settings()->setClobberUserAgentInitialScaleQuirk(false);
+        webViewHelper.webView()->setInitialPageScaleOverride(enforcedPageScalePactor);
+        webViewHelper.webView()->resize(WebSize(viewportWidth, viewportHeight));
+
+        EXPECT_EQ(enforcedPageScalePactor, webViewHelper.webView()->pageScaleFactor());
+    }
+
+    {
+        FrameTestHelpers::WebViewHelper webViewHelper;
+        webViewHelper.initializeAndLoad(m_baseURL + "viewport-device-0.5x-initial-scale.html", true, 0, &client);
+        webViewHelper.webView()->settings()->setViewportEnabled(true);
+        webViewHelper.webView()->settings()->setClobberUserAgentInitialScaleQuirk(true);
+        webViewHelper.webView()->setInitialPageScaleOverride(enforcedPageScalePactor);
+        webViewHelper.webView()->resize(WebSize(viewportWidth, viewportHeight));
+
+        EXPECT_EQ(pageScaleFactor, webViewHelper.webView()->pageScaleFactor());
+    }
+}
+
+TEST_F(WebFrameTest, SmallPermanentInitialPageScaleFactorIsClobberedWithAutoWidthAndInitialScale1)
+{
+    UseMockScrollbarSettings mockScrollbarSettings;
+    registerMockedHttpURLLoad("viewport-initial-scale-1.html");
+
+    FixedLayoutTestWebViewClient client;
+    client.m_screenInfo.deviceScaleFactor = 1;
+    int viewportWidth = 640;
+    int viewportHeight = 480;
+    float enforcedPageScalePactor = 0.75f;
+    float pageScaleFactor = 1.0f;
+
+    {
+        FrameTestHelpers::WebViewHelper webViewHelper;
+        webViewHelper.initializeAndLoad(m_baseURL + "viewport-initial-scale-1.html", true, 0, &client);
+        webViewHelper.webView()->settings()->setViewportEnabled(true);
+        webViewHelper.webView()->settings()->setClobberUserAgentInitialScaleQuirk(false);
+        webViewHelper.webView()->setInitialPageScaleOverride(enforcedPageScalePactor);
+        webViewHelper.webView()->resize(WebSize(viewportWidth, viewportHeight));
+
+        EXPECT_EQ(enforcedPageScalePactor, webViewHelper.webView()->pageScaleFactor());
+    }
+
+    {
+        FrameTestHelpers::WebViewHelper webViewHelper;
+        webViewHelper.initializeAndLoad(m_baseURL + "viewport-initial-scale-1.html", true, 0, &client);
+        webViewHelper.webView()->settings()->setViewportEnabled(true);
+        webViewHelper.webView()->settings()->setClobberUserAgentInitialScaleQuirk(true);
+        webViewHelper.webView()->setInitialPageScaleOverride(enforcedPageScalePactor);
+        webViewHelper.webView()->resize(WebSize(viewportWidth, viewportHeight));
+
+        EXPECT_EQ(pageScaleFactor, webViewHelper.webView()->pageScaleFactor());
+    }
+}
+
 TEST_F(WebFrameTest, WideViewportInitialScaleDoesNotExpandFixedLayoutWidth)
 {
     UseMockScrollbarSettings mockScrollbarSettings;
     registerMockedHttpURLLoad("viewport-device-0.5x-initial-scale.html");
 
     FixedLayoutTestWebViewClient client;
     client.m_screenInfo.deviceScaleFactor = 1;
     int viewportWidth = 640;
     int viewportHeight = 480;
 
@@ skipping 3387 matching lines @@
 
     FrameTestHelpers::loadFrame(frame,
         "javascript:window.frames[1].location.assign('" + m_baseURL + "find.html')");
     runPendingTasks();
     Platform::current()->unitTestSupport()->serveAsynchronousMockedRequests();
     EXPECT_EQ(client.frame(), iframe);
     EXPECT_FALSE(client.replacesCurrentHistoryItem());
 }
 
 } // namespace