[DevTools] Generate separate copies of inspector_protocol.

third_party/WebKit/Source/platform/inspector_protocol/Allocator_h.template

Index: third_party/WebKit/Source/platform/inspector_protocol/Allocator_h.template
diff --git a/third_party/WebKit/Source/platform/inspector_protocol/Allocator_h.template b/third_party/WebKit/Source/platform/inspector_protocol/Allocator_h.template
index e38b76cd62b7d3fc12f54462e92312558e167bf9..8f8109d695c5976647454ce6ccb3d3c99eebe437 100644
--- a/third_party/WebKit/Source/platform/inspector_protocol/Allocator_h.template
+++ b/third_party/WebKit/Source/platform/inspector_protocol/Allocator_h.template
@@ -2,8 +2,12 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef Allocator_h
-#define Allocator_h
+#ifndef {{"_".join(config.protocol.namespace)}}_Allocator_h
+#define {{"_".join(config.protocol.namespace)}}_Allocator_h
+
+{% for namespace in config.protocol.namespace %}
+namespace {{namespace}} {
+{% endfor %}
 
 enum NotNullTagEnum { NotNullLiteral };
 
@@ -19,4 +23,8 @@ enum NotNullTagEnum { NotNullLiteral };
         ClassName(const ClassName&) = delete; \
         ClassName& operator=(const ClassName&) = delete
 
-#endif /* Allocator_h */
+{% for namespace in config.protocol.namespace %}
+} // namespace {{namespace}}
+{% endfor %}
+
+#endif // !defined({{"_".join(config.protocol.namespace)}}_Allocator_h)