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diff --git a/Source/WebCore/rendering/RenderThemeChromiumFontProviderWin.cpp b/Source/WebCore/rendering/RenderThemeChromiumFontProviderWin.cpp
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+++ b/Source/WebCore/rendering/RenderThemeChromiumFontProviderWin.cpp
@@ -0,0 +1,192 @@
+/*
+ * Copyright (C) 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:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "config.h"
+#include "RenderThemeChromiumFontProvider.h"
+
+#include "CSSValueKeywords.h"
+#include "FontDescription.h"
+#include "HWndDC.h"
+#include "SystemInfo.h"
+
+#include <windows.h>
+#include <wtf/text/WTFString.h>
+
+#define SIZEOF_STRUCT_WITH_SPECIFIED_LAST_MEMBER(structName, member) \
+    offsetof(structName, member) + \
+    (sizeof static_cast<structName*>(0)->member)
+#define NONCLIENTMETRICS_SIZE_PRE_VISTA \
+    SIZEOF_STRUCT_WITH_SPECIFIED_LAST_MEMBER(NONCLIENTMETRICS, lfMessageFont)
+
+namespace WebCore {
+
+static FontDescription& smallSystemFont()
+{
+    DEFINE_STATIC_LOCAL(FontDescription, font, ());
+    return font;
+}
+
+static FontDescription& menuFont()
+{
+    DEFINE_STATIC_LOCAL(FontDescription, font, ());
+    return font;
+}
+
+static FontDescription& labelFont()
+{
+    DEFINE_STATIC_LOCAL(FontDescription, font, ());
+    return font;
+}
+
+// Converts |points| to pixels. One point is 1/72 of an inch.
+static float pointsToPixels(float points)
+{
+    static float pixelsPerInch = 0.0f;
+    if (!pixelsPerInch) {
+        HWndDC hdc(0); // What about printing? Is this the right DC?
+        if (hdc) // Can this ever actually be 0?
+            pixelsPerInch = GetDeviceCaps(hdc, LOGPIXELSY);
+        else
+            pixelsPerInch = 96.0f;
+    }
+
+    static const float pointsPerInch = 72.0f;
+    return points / pointsPerInch * pixelsPerInch;
+}
+
+static void getNonClientMetrics(NONCLIENTMETRICS* metrics)
+{
+    static UINT size = (windowsVersion() >= WindowsVista) ?
+        sizeof(NONCLIENTMETRICS) : NONCLIENTMETRICS_SIZE_PRE_VISTA;
+    metrics->cbSize = size;
+    bool success = !!SystemParametersInfo(SPI_GETNONCLIENTMETRICS, size, metrics, 0);
+    ASSERT(success);
+}
+
+// Return the height of system font |font| in pixels. We use this size by
+// default for some non-form-control elements.
+static float systemFontSize(const LOGFONT& font)
+{
+    float size = -font.lfHeight;
+    if (size < 0) {
+        HFONT hFont = CreateFontIndirect(&font);
+        if (hFont) {
+            HWndDC hdc(0); // What about printing? Is this the right DC?
+            if (hdc) {
+                HGDIOBJ hObject = SelectObject(hdc, hFont);
+                TEXTMETRIC tm;
+                GetTextMetrics(hdc, &tm);
+                SelectObject(hdc, hObject);
+                size = tm.tmAscent;
+            }
+            DeleteObject(hFont);
+        }
+    }
+
+    // The "codepage 936" bit here is from Gecko; apparently this helps make
+    // fonts more legible in Simplified Chinese where the default font size is
+    // too small.
+    //
+    // FIXME: http://b/1119883 Since this is only used for "small caption",
+    // "menu", and "status bar" objects, I'm not sure how much this even
+    // matters. Plus the Gecko patch went in back in 2002, and maybe this
+    // isn't even relevant anymore. We should investigate whether this should
+    // be removed, or perhaps broadened to be "any CJK locale".
+    //
+    return ((size < 12.0f) && (GetACP() == 936)) ? 12.0f : size;
+}
+
+// static
+void RenderThemeChromiumFontProvider::systemFont(int propId, FontDescription& fontDescription)
+{
+    // This logic owes much to RenderThemeSafari.cpp.
+    FontDescription* cachedDesc = 0;
+    AtomicString faceName;
+    float fontSize = 0;
+    switch (propId) {
+    case CSSValueSmallCaption:
+        cachedDesc = &smallSystemFont();
+        if (!smallSystemFont().isAbsoluteSize()) {
+            NONCLIENTMETRICS metrics;
+            getNonClientMetrics(&metrics);
+            faceName = AtomicString(metrics.lfSmCaptionFont.lfFaceName, wcslen(metrics.lfSmCaptionFont.lfFaceName));
+            fontSize = systemFontSize(metrics.lfSmCaptionFont);
+        }
+        break;
+    case CSSValueMenu:
+        cachedDesc = &menuFont();
+        if (!menuFont().isAbsoluteSize()) {
+            NONCLIENTMETRICS metrics;
+            getNonClientMetrics(&metrics);
+            faceName = AtomicString(metrics.lfMenuFont.lfFaceName, wcslen(metrics.lfMenuFont.lfFaceName));
+            fontSize = systemFontSize(metrics.lfMenuFont);
+        }
+        break;
+    case CSSValueStatusBar:
+        cachedDesc = &labelFont();
+        if (!labelFont().isAbsoluteSize()) {
+            NONCLIENTMETRICS metrics;
+            getNonClientMetrics(&metrics);
+            faceName = metrics.lfStatusFont.lfFaceName;
+            fontSize = systemFontSize(metrics.lfStatusFont);
+        }
+        break;
+    case CSSValueWebkitMiniControl:
+    case CSSValueWebkitSmallControl:
+    case CSSValueWebkitControl:
+        faceName = defaultGUIFont();
+        // Why 2 points smaller? Because that's what Gecko does.
+        fontSize = s_defaultFontSize - pointsToPixels(2);
+        break;
+    default:
+        faceName = defaultGUIFont();
+        fontSize = s_defaultFontSize;
+        break;
+    }
+
+    if (!cachedDesc)
+        cachedDesc = &fontDescription;
+
+    if (fontSize) {
+        cachedDesc->firstFamily().setFamily(faceName);
+        cachedDesc->setIsAbsoluteSize(true);
+        cachedDesc->setGenericFamily(FontDescription::NoFamily);
+        cachedDesc->setSpecifiedSize(fontSize);
+        cachedDesc->setWeight(FontWeightNormal);
+        cachedDesc->setItalic(false);
+    }
+    fontDescription = *cachedDesc;
+}
+
+// static
+void RenderThemeChromiumFontProvider::setDefaultFontSize(int fontSize)
+{
+    s_defaultFontSize = static_cast<float>(fontSize);
+
+    // Reset cached fonts.
+    smallSystemFont() = menuFont() = labelFont() = FontDescription();
+}
+
+} // namespace WebCore