Qualify #includes in files generated by make_qualified_names.py.

Also, fix include guards.
This CL has no behavior changes.

Bug: 836071
Change-Id: I21d78c16c302405e9fb375843388aaaaaf093500
Reviewed-on: https://chromium-review.googlesource.com/1037047Reviewed-by: Hitoshi Yoshida <peria@chromium.org>
Commit-Queue: Kent Tamura <tkent@chromium.org>
Cr-Commit-Position: refs/heads/master@{#555288}

third_party/blink/renderer/build/scripts/make_qualified_names.py

@@ -81,14 +81,17 @@ class MakeQualifiedNamesWriter(json5_generator.Writer):
             (self.namespace.lower() + "_names.h"): self.generate_header,
             (self.namespace.lower() + "_names.cc"): self.generate_implementation,
         }
+        qualified_header = self._relative_output_dir + self.namespace.lower() + '_names.h'
         self._template_context = {
             'attrs': self.attrs_json5_file.name_dictionaries,
             'export': self._metadata('export'),
+            'header_guard': self.make_header_guard(qualified_header),
             'input_files': self._input_files,
             'namespace': self.namespace,
             'namespace_prefix': namespace_prefix,
             'namespace_uri': namespace_uri,
             'tags': self.tags_json5_file.name_dictionaries if self.tags_json5_file else [],
+            'this_include_path': qualified_header,
             'use_namespace_for_attrs': use_namespace_for_attrs,
         }
 

third_party/blink/renderer/build/scripts/templates/make_qualified_names.cc.tmpl

@@ -3,11 +3,12 @@
 
 {{source_files_for_generated_file(template_file, input_files)}}
 
-#include "{{namespace|lower}}_names.h"
+#include "{{this_include_path}}"
+
+#include <memory>
 
 #include "third_party/blink/renderer/platform/wtf/static_constructors.h"
 #include "third_party/blink/renderer/platform/wtf/std_lib_extras.h"
-#include <memory>
 
 namespace blink {
 namespace {{namespace}}Names {
@@ -103,5 +104,5 @@ void init() {
   DCHECK_EQ(attr_i, {{namespace}}AttrsCount);
 }
 
-} // {{namespace}}
-} // namespace blink
+}  // namespace {{namespace}}Names
+}  // namespace blink

third_party/blink/renderer/build/scripts/templates/make_qualified_names.h.tmpl

@@ -3,8 +3,8 @@
 
 {{source_files_for_generated_file(template_file, input_files)}}
 
-#ifndef BLINK_CORE_{{namespace|upper}}_NAMES_H_
-#define BLINK_CORE_{{namespace|upper}}_NAMES_H_
+#ifndef {{header_guard}}
+#define {{header_guard}}
 
 {% if export == 'CORE_EXPORT' %}
 #include "third_party/blink/renderer/core/core_export.h"
@@ -44,7 +44,7 @@ std::unique_ptr<const QualifiedName*[]> get{{namespace}}Attrs();
 
 void init();
 
-} // {{namespace}}Names
-} // namespace blink
+}  // namespace {{namespace}}Names
+}  // namespace blink
 
-#endif
+#endif  // {{header_guard}}