Add Settings::deviceScaleAdjustment.

Source/core/page/Settings.cpp

Index: Source/core/page/Settings.cpp
diff --git a/Source/core/page/Settings.cpp b/Source/core/page/Settings.cpp
index 3bde44c93c2bbe2bbf28ffc5af339883aee439f3..97704d2d230aa34a288d94b53c1e7b0267eba6fb 100644
--- a/Source/core/page/Settings.cpp
+++ b/Source/core/page/Settings.cpp
@@ -120,6 +120,7 @@ Settings::Settings(Page* page)
 #else
     , m_textAutosizingEnabled(false)
 #endif
+    , m_deviceScaleAdjustment(1.0f)
     , m_useWideViewport(true)
     , m_loadWithOverviewMode(true)
     SETTINGS_INITIALIZER_LIST
@@ -258,10 +259,8 @@ void Settings::setLoadWithOverviewMode(bool loadWithOverviewMode)
         m_page->chrome().dispatchViewportPropertiesDidChange(m_page->mainFrame()->document()->viewportDescription());
 }
 
-void Settings::setTextAutosizingFontScaleFactor(float fontScaleFactor)
+void Settings::recalculateAutosizingMultipliers()

[pdr., 2013/10/29 02:04:44]

Confusingly, autosizing and text autosizing are different. Do you mind naming
this recalculateTextAutosizingMultipliers?

[skobes, 2013/10/29 17:43:32]

Done.

 {
-    m_textAutosizingFontScaleFactor = fontScaleFactor;
-
     // FIXME: I wonder if this needs to traverse frames like in WebViewImpl::resize, or whether there is only one document per Settings instance?
     for (Frame* frame = m_page->mainFrame(); frame; frame = frame->tree().traverseNext())
         frame->document()->textAutosizer()->recalculateMultipliers();
@@ -269,6 +268,18 @@ void Settings::setTextAutosizingFontScaleFactor(float fontScaleFactor)
     m_page->setNeedsRecalcStyleInAllFrames();
 }
 
+void Settings::setTextAutosizingFontScaleFactor(float fontScaleFactor)
+{
+    m_textAutosizingFontScaleFactor = fontScaleFactor;
+    recalculateAutosizingMultipliers();
+}
+
+void Settings::setDeviceScaleAdjustment(float deviceScaleAdjustment)
+{
+    m_deviceScaleAdjustment = deviceScaleAdjustment;
+    recalculateAutosizingMultipliers();
+}
+
 void Settings::setMediaTypeOverride(const String& mediaTypeOverride)
 {
     if (m_mediaTypeOverride == mediaTypeOverride)