Pass the path mapping via RefCountedData in ModuleInspector

chrome/browser/conflicts/module_inspector_win.cc

Index: chrome/browser/conflicts/module_inspector_win.cc
diff --git a/chrome/browser/conflicts/module_inspector_win.cc b/chrome/browser/conflicts/module_inspector_win.cc
index e706b06ea2ab9c14a318544e469051a463ede8b6..a17b640e7280b8d30cef907456d39bfc3d0f25bc 100644
--- a/chrome/browser/conflicts/module_inspector_win.cc
+++ b/chrome/browser/conflicts/module_inspector_win.cc
@@ -18,13 +18,22 @@ StringMapping GetPathMapping() {
   });
 }
 
+// Wrapper function for InspectModule() that takes the StringMapping via a
+// scoped_refptr. This saves a copy per invocation.
+std::unique_ptr<ModuleInspectionResult> InspectModuleOnBlockingSequence(
+    scoped_refptr<base::RefCountedData<StringMapping>> env_variable_mapping,
+    const ModuleInfoKey& module_key) {
+  return InspectModule(env_variable_mapping->data, module_key);
+}
+
 }  // namespace
 
 ModuleInspector::ModuleInspector(
     const OnModuleInspectedCallback& on_module_inspected_callback)
     : on_module_inspected_callback_(on_module_inspected_callback),
       inspection_task_priority_(base::TaskPriority::BACKGROUND),
-      path_mapping_(GetPathMapping()),
+      path_mapping_(base::MakeRefCounted<base::RefCountedData<StringMapping>>(
+          GetPathMapping())),
       weak_ptr_factory_(this) {}
 
 ModuleInspector::~ModuleInspector() = default;
@@ -50,7 +59,8 @@ void ModuleInspector::StartInspectingModule() {
       FROM_HERE,
       {base::MayBlock(), inspection_task_priority_,
        base::TaskShutdownBehavior::CONTINUE_ON_SHUTDOWN},
-      base::BindOnce(&InspectModule, path_mapping_, module_key),
+      base::BindOnce(&InspectModuleOnBlockingSequence, path_mapping_,
+                     module_key),
       base::BindOnce(&ModuleInspector::OnInspectionFinished,
                      weak_ptr_factory_.GetWeakPtr(), module_key));
 }