Merge from Chromium at DEPS revision r198571

This commit was generated by merge_to_master.py.

Change-Id: I3a7f89ea6b8c017335bd52739166aed708cad1e5
diff --git a/Source/core/svg/SVGVKernElement.cpp b/Source/core/svg/SVGVKernElement.cpp
new file mode 100644
index 0000000..db40aa0
--- /dev/null
+++ b/Source/core/svg/SVGVKernElement.cpp
@@ -0,0 +1,87 @@
+/*
+ * Copyright (C) Research In Motion Limited 2010. All rights reserved.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public License
+ * along with this library; see the file COPYING.LIB.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#include "config.h"
+
+#if ENABLE(SVG_FONTS)
+#include "core/svg/SVGVKernElement.h"
+
+#include "SVGNames.h"
+#include "core/svg/SVGFontElement.h"
+#include "core/svg/SVGFontFaceElement.h"
+
+namespace WebCore {
+
+inline SVGVKernElement::SVGVKernElement(const QualifiedName& tagName, Document* document)
+    : SVGElement(tagName, document)
+{
+    ASSERT(hasTagName(SVGNames::vkernTag));
+    ScriptWrappable::init(this);
+}
+
+PassRefPtr<SVGVKernElement> SVGVKernElement::create(const QualifiedName& tagName, Document* document)
+{
+    return adoptRef(new SVGVKernElement(tagName, document));
+}
+
+Node::InsertionNotificationRequest SVGVKernElement::insertedInto(ContainerNode* rootParent)
+{
+    if (rootParent->inDocument()) {
+        ContainerNode* fontNode = parentNode();
+        if (fontNode && fontNode->hasTagName(SVGNames::fontTag)) {
+            if (SVGFontElement* element = static_cast<SVGFontElement*>(fontNode))
+                element->invalidateGlyphCache();
+        }
+    }
+
+    return SVGElement::insertedInto(rootParent);
+}
+
+void SVGVKernElement::removedFrom(ContainerNode* rootParent)
+{
+    ContainerNode* fontNode = parentNode();
+    if (fontNode && fontNode->hasTagName(SVGNames::fontTag)) {
+        if (SVGFontElement* element = static_cast<SVGFontElement*>(fontNode))
+            element->invalidateGlyphCache();
+    }
+    SVGElement::removedFrom(rootParent);
+}
+
+void SVGVKernElement::buildVerticalKerningPair(KerningPairVector& kerningPairs)
+{
+    String u1 = fastGetAttribute(SVGNames::u1Attr);
+    String g1 = fastGetAttribute(SVGNames::g1Attr);
+    String u2 = fastGetAttribute(SVGNames::u2Attr);
+    String g2 = fastGetAttribute(SVGNames::g2Attr);
+    if ((u1.isEmpty() && g1.isEmpty()) || (u2.isEmpty() && g2.isEmpty()))
+        return;
+
+    SVGKerningPair kerningPair;
+    if (parseGlyphName(g1, kerningPair.glyphName1)
+        && parseGlyphName(g2, kerningPair.glyphName2)
+        && parseKerningUnicodeString(u1, kerningPair.unicodeRange1, kerningPair.unicodeName1)
+        && parseKerningUnicodeString(u2, kerningPair.unicodeRange2, kerningPair.unicodeName2)) {
+        kerningPair.kerning = fastGetAttribute(SVGNames::kAttr).string().toFloat();
+        kerningPairs.append(kerningPair);
+    }
+}
+
+}
+
+#endif // ENABLE(SVG_FONTS)