Zoom instead of autosizing for desktop sites.

Source/web/PageScaleConstraintsSet.cpp

Index: Source/web/PageScaleConstraintsSet.cpp
diff --git a/Source/web/PageScaleConstraintsSet.cpp b/Source/web/PageScaleConstraintsSet.cpp
index b361be9ce18b7a5e6c70349c10fb53d7b7f8dae8..adb0ad41a26c51e62c1c471545da7e3553ee739b 100644
--- a/Source/web/PageScaleConstraintsSet.cpp
+++ b/Source/web/PageScaleConstraintsSet.cpp
@@ -182,4 +182,13 @@ void PageScaleConstraintsSet::adjustForAndroidWebViewQuirks(const ViewportDescri
     }
 }
 
+void PageScaleConstraintsSet::applyDeviceScaleAdjustment(const ViewportDescription& viewportDescription, float deviceScaleAdjustment, float minimumWidth)
+{
+    // If possible, reduce the layout width instead of applying text autosizing.
+    // But don't reduce below the minimum fallback width and don't reduce if explicitly specified by the page author.
+    float width = m_pageDefinedConstraints.layoutSize.width();
+    if (width > minimumWidth && !viewportDescription.isSpecifiedByAuthor() && deviceScaleAdjustment > 1.0f)

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

Can we delete the condition "deviceScaleAdjustment > 1.0f"?  If <1 values are
bad then we should avoid producing them in GetDeviceScaleAdjustment() on the
Chromium side in the first place.

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

Done.

+        m_pageDefinedConstraints.layoutSize.setWidth(std::max(minimumWidth, width / deviceScaleAdjustment));
+}
+
 } // namespace WebCore