Lazy Parse CSS

third_party/WebKit/Source/core/css/parser/CSSLazyPropertyParserImpl.cpp

Index: third_party/WebKit/Source/core/css/parser/CSSLazyPropertyParserImpl.cpp
diff --git a/third_party/WebKit/Source/core/css/parser/CSSLazyPropertyParserImpl.cpp b/third_party/WebKit/Source/core/css/parser/CSSLazyPropertyParserImpl.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..b075466f66a3946b36cd5336e14235789bf31e8b
--- /dev/null
+++ b/third_party/WebKit/Source/core/css/parser/CSSLazyPropertyParserImpl.cpp
@@ -0,0 +1,26 @@
+// Copyright 2016 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "core/css/parser/CSSLazyPropertyParserImpl.h"
+
+#include "core/css/parser/CSSLazyParsingState.h"
+#include "core/css/parser/CSSParserImpl.h"
+
+namespace blink {
+
+CSSLazyPropertyParserImpl::CSSLazyPropertyParserImpl(CSSParserTokenRange block,
+                                                     CSSLazyParsingState* state)
+    : CSSLazyPropertyParser(), m_lazyState(state) {
+  // Reserve capacity to minimize heap bloat.
+  size_t length = block.end() - block.begin();
+  m_tokens.reserveCapacity(length);
+  m_tokens.append(block.begin(), length);
+}
+
+StylePropertySet* CSSLazyPropertyParserImpl::parseProperties() {
+  return CSSParserImpl::parseDeclarationListForLazyStyle(
+      m_tokens, m_lazyState->context());
+}
+
+}  // namespace blink