Made a generator for .h files for implementations of CSSPropertyAPI.h

third_party/WebKit/Source/build/scripts/templates/CSSPropertyAPIFiles.h.tmpl

Index: third_party/WebKit/Source/build/scripts/templates/CSSPropertyAPIFiles.h.tmpl
diff --git a/third_party/WebKit/Source/core/css/properties/CSSPropertyAPIMargin.h b/third_party/WebKit/Source/build/scripts/templates/CSSPropertyAPIFiles.h.tmpl
similarity index 78%
rename from third_party/WebKit/Source/core/css/properties/CSSPropertyAPIMargin.h
rename to third_party/WebKit/Source/build/scripts/templates/CSSPropertyAPIFiles.h.tmpl
index 2588e5448abf155b6ad36635986c5fceec1501bd..f49b443648bcbfeba16b0cbc463ccd2cb7e26493 100644
--- a/third_party/WebKit/Source/core/css/properties/CSSPropertyAPIMargin.h
+++ b/third_party/WebKit/Source/build/scripts/templates/CSSPropertyAPIFiles.h.tmpl
@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef CSSPropertyAPIMargin_h
-#define CSSPropertyAPIMargin_h
+#ifndef {{api_classname}}_h
+#define {{api_classname}}_h
 
 #include "core/CSSPropertyNames.h"
 #include "core/css/properties/CSSPropertyAPI.h"
@@ -15,7 +15,7 @@ namespace blink {
 class CSSParserTokenRange;
 class CSSParserContext;
 
-class CSSPropertyAPIMargin : public CSSPropertyAPI {
+class {{api_classname}} : public CSSPropertyAPI {
  public:
   static const CSSValue* parseSingleValue(CSSParserTokenRange&,
                                           const CSSParserContext&);
@@ -23,4 +23,4 @@ class CSSPropertyAPIMargin : public CSSPropertyAPI {
 
 }  // namespace blink
 
-#endif  // CSSPropertyAPIMargin_h
+#endif  // {{api_classname}}_h