Apply snake_case to EventFactory.cpp.tmpl and CSSPropertySubclass.*.tmpl.

C++ source files generated by these templates were already converted to
snake_case.
This CL has no behavior changes.

Bug: 770603
Change-Id: Ief42bcec5ec354c9fa052e8559559e5aae199cfa
Reviewed-on: https://chromium-review.googlesource.com/965682Reviewed-by: Hitoshi Yoshida <peria@chromium.org>
Commit-Queue: Kent Tamura <tkent@chromium.org>
Cr-Commit-Position: refs/heads/master@{#543622}

third_party/WebKit/Source/build/scripts/core/css/properties/make_css_property_subclasses.py

@@ -71,7 +71,7 @@ class CSSPropertiesWriter(CSSPropertyBaseWriter):
 
     def generate_property_h_builder(self, property_classname, property_filename, property_):
         @template_expander.use_jinja(
-            'core/css/properties/templates/CSSPropertySubclass.h.tmpl',
+            'core/css/properties/templates/css_property_subclass.h.tmpl',
             template_cache=self.template_cache)
         def generate_property_h():
             return {
@@ -85,7 +85,7 @@ class CSSPropertiesWriter(CSSPropertyBaseWriter):
 
     def generate_property_cpp_builder(self, property_filename, property_):
         @template_expander.use_jinja(
-            'core/css/properties/templates/CSSPropertySubclass.cpp.tmpl',
+            'core/css/properties/templates/css_property_subclass.cc.tmpl',
             template_cache=self.template_cache)
         def generate_property_cpp():
             return {

third_party/WebKit/Source/build/scripts/make_event_factory.py

@@ -141,7 +141,7 @@ class EventFactoryWriter(json5_generator.Writer):
             includes[cpp_name] = self._headers_header_include_path(entry)
         return sorted(includes.values())
 
-    @template_expander.use_jinja('templates/EventFactory.cpp.tmpl', filters=filters)
+    @template_expander.use_jinja('templates/event_factory.cc.tmpl', filters=filters)
     def generate_implementation(self):
         return {
             'include_header_paths': self._headers_header_includes(

third_party/WebKit/Source/build/scripts/scripts.gni

@@ -29,7 +29,7 @@ css_properties_files =
 
 make_event_factory_files = scripts_for_json5_files + [
                              "$_scripts_dir/make_event_factory.py",
-                             "$_scripts_dir/templates/EventFactory.cpp.tmpl",
+                             "$_scripts_dir/templates/event_factory.cc.tmpl",
                            ]
 
 make_names_files = scripts_for_json5_files + [

third_party/WebKit/Source/core/BUILD.gn

@@ -553,8 +553,8 @@ css_properties("make_core_generated_css_longhand_property_classes") {
       "../build/scripts/core/css/properties/make_css_property_subclasses.py"
   in_files = [ "css/properties/CSSPropertyMethods.json5" ]
   other_inputs = [
-    "../build/scripts/core/css/properties/templates/CSSPropertySubclass.h.tmpl",
-    "../build/scripts/core/css/properties/templates/CSSPropertySubclass.cpp.tmpl",
+    "../build/scripts/core/css/properties/templates/css_property_subclass.h.tmpl",
+    "../build/scripts/core/css/properties/templates/css_property_subclass.cc.tmpl",
   ]
   outputs = [
     "$blink_core_output_dir/css/properties/longhands/align_content.h",
@@ -1020,9 +1020,7 @@ css_properties("make_core_generated_css_shorthand_property_classes") {
   script =
       "../build/scripts/core/css/properties/make_css_property_subclasses.py"
   in_files = [ "css/properties/CSSPropertyMethods.json5" ]
-  other_inputs = [
-    "../build/scripts/core/css/properties/templates/CSSPropertySubclass.h.tmpl",
-  ]
+  other_inputs = [ "../build/scripts/core/css/properties/templates/css_property_subclass.h.tmpl" ]
   outputs = [
     "$blink_core_output_dir/css/properties/shorthands/animation.h",
     "$blink_core_output_dir/css/properties/shorthands/background.h",