Adapt String::find method via StringUtil adapter. [v8 repo]

third_party/inspector_protocol/lib/DispatcherBase_cpp.template

Index: third_party/inspector_protocol/lib/DispatcherBase_cpp.template
diff --git a/third_party/inspector_protocol/lib/DispatcherBase_cpp.template b/third_party/inspector_protocol/lib/DispatcherBase_cpp.template
index 0d4a305abe89872af970ba20b9dc8cc1da563a20..fac555363b07e2d5eb709e42c08c59fb7d2ce485 100644
--- a/third_party/inspector_protocol/lib/DispatcherBase_cpp.template
+++ b/third_party/inspector_protocol/lib/DispatcherBase_cpp.template
@@ -276,7 +276,7 @@ DispatchResponse::Status UberDispatcher::dispatch(std::unique_ptr<Value> parsedM
         return DispatchResponse::kError;
     }
 
-    size_t dotIndex = method.find(".");
+    size_t dotIndex = StringUtil::find(method, ".");
     if (dotIndex == StringUtil::kNotFound) {
         if (m_fallThroughForNotFound)
             return DispatchResponse::kFallThrough;