Move ExtensionService::GetExtensionById() to ExtensionRegistry

extensions/browser/extension_registry.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "extensions/browser/extension_registry.h"
 
+#include "base/strings/string_util.h"
 #include "extensions/browser/extension_registry_factory.h"
 
 namespace extensions {
 
 ExtensionRegistry::ExtensionRegistry() {}
 ExtensionRegistry::~ExtensionRegistry() {}
 
 // static
 ExtensionRegistry* ExtensionRegistry::Get(content::BrowserContext* context) {
   return ExtensionRegistryFactory::GetForBrowserContext(context);
 }
 
+const Extension* ExtensionRegistry::GetExtensionById(const std::string& id,
+                                                     int include_mask) const {
+  std::string lowercase_id = StringToLowerASCII(id);
+  if (include_mask & INCLUDE_ENABLED) {
+    const Extension* extension = enabled_extensions_.GetByID(lowercase_id);
+    if (extension)
+      return extension;
+  }
+  if (include_mask & INCLUDE_DISABLED) {
+    const Extension* extension = disabled_extensions_.GetByID(lowercase_id);
+    if (extension)
+      return extension;
+  }
+  if (include_mask & INCLUDE_TERMINATED) {
+    const Extension* extension = terminated_extensions_.GetByID(lowercase_id);
+    if (extension)
+      return extension;
+  }
+  if (include_mask & INCLUDE_BLACKLISTED) {
+    const Extension* extension = blacklisted_extensions_.GetByID(lowercase_id);
+    if (extension)
+      return extension;
+  }
+  return NULL;
+}
+
 bool ExtensionRegistry::AddEnabled(
     const scoped_refptr<const Extension>& extension) {
   return enabled_extensions_.Insert(extension);
 }
 
 bool ExtensionRegistry::RemoveEnabled(const std::string& id) {
   return enabled_extensions_.Remove(id);
 }
 
 bool ExtensionRegistry::AddDisabled(
@@ skipping 34 matching lines @@
     const ExtensionSet::ModificationCallback& callback) {
   disabled_extensions_.set_modification_callback(callback);
 }
 
 void ExtensionRegistry::Shutdown() {
   // Release references to all Extension objects in the sets.
   ClearAll();
 }
 
 }  // namespace extensions