Proof of concept of unity build for WebKit/Source/core/html

third_party/WebKit/Source/core/html/parser/HTMLTokenizer.cpp

Index: third_party/WebKit/Source/core/html/parser/HTMLTokenizer.cpp
diff --git a/third_party/WebKit/Source/core/html/parser/HTMLTokenizer.cpp b/third_party/WebKit/Source/core/html/parser/HTMLTokenizer.cpp
index f088cf039e4a30be27ddd4fde77e68e2ae20b4dc..bde3fd4301b537a2128869df4357c4d4e9fb4cf3 100644
--- a/third_party/WebKit/Source/core/html/parser/HTMLTokenizer.cpp
+++ b/third_party/WebKit/Source/core/html/parser/HTMLTokenizer.cpp
@@ -38,6 +38,7 @@
 
 // Please don't use DEFINE_STATIC_LOCAL in this file. The HTMLTokenizer is used
 // from multiple threads and DEFINE_STATIC_LOCAL isn't threadsafe.
+#pragma push_macro("DEFINE_STATIC_LOCAL")
 #undef DEFINE_STATIC_LOCAL
 
 namespace blink {
@@ -1590,3 +1591,5 @@ inline void HTMLTokenizer::parseError() {
 }
 
 }  // namespace blink
+
+#pragma pop_macro("DEFINE_STATIC_LOCAL")