Zoom instead of autosizing for desktop sites.

Source/web/WebViewImpl.cpp

Index: Source/web/WebViewImpl.cpp
diff --git a/Source/web/WebViewImpl.cpp b/Source/web/WebViewImpl.cpp
index 09ae305e3ac032e70c58adaef7a52f52c9378375..f4041caa15ad81f7a8f0500cbc7038bbc85813d3 100644
--- a/Source/web/WebViewImpl.cpp
+++ b/Source/web/WebViewImpl.cpp
@@ -3014,6 +3014,7 @@ void WebViewImpl::updatePageDefinedViewportConstraints(const ViewportDescription
             setInitialPageScaleOverride(-1);
     }
     m_pageScaleConstraintsSet.adjustForAndroidWebViewQuirks(adjustedDescription, m_size, page()->settings().layoutFallbackWidth(), deviceScaleFactor(), settingsImpl()->supportDeprecatedTargetDensityDPI(), page()->settings().wideViewportQuirkEnabled(), page()->settings().useWideViewport(), page()->settings().loadWithOverviewMode());
+    m_pageScaleConstraintsSet.applyDeviceScaleAdjustment(adjustedDescription, page()->settings().deviceScaleAdjustment(), page()->settings().layoutFallbackWidth());

[aelias_OOO_until_Jul13, 2013/11/07 02:05:25]

layoutFallbackWidth setting is due for removal soon, we shouldn't add another
dependency on it.  The value 980 is now specified by
"@viewport{min-width:980px}" in UA CSS files.  It doesn't look like you need it
either, since you can expect m_pageDefinedConstraints.layoutSize.width() to
already be 980 or higher if !viewportDescription.isSpecifiedByAuthor().

[skobes, 2013/11/07 17:55:27]

It's needed to avoid reducing the width below 980px.  Changed to a constant.

     float newInitialScale = m_pageScaleConstraintsSet.pageDefinedConstraints().initialScale;
     if (oldInitialScale != newInitialScale && newInitialScale != -1) {
         m_pageScaleConstraintsSet.setNeedsReset(true);