Move CrxFile, FileReader, ExtensionResource to src/extensions.

chrome/common/extensions/extension_test_util.cc

Index: chrome/common/extensions/extension_test_util.cc
diff --git a/chrome/common/extensions/extension_test_util.cc b/chrome/common/extensions/extension_test_util.cc
index 257b2e7cbf456ee21b1022e36b0c1cb563a1053b..621db1efe712742e4c6b36cea14b0e8d6e9b0de4 100644
--- a/chrome/common/extensions/extension_test_util.cc
+++ b/chrome/common/extensions/extension_test_util.cc
@@ -12,15 +12,6 @@ using extensions::Extension;
 
 namespace extension_test_util {
 
-std::string MakeId(std::string seed) {
-  std::string result;
-  bool success = Extension::GenerateId(seed, &result);
-  EXPECT_TRUE(success);
-  EXPECT_FALSE(result.empty());
-  EXPECT_TRUE(Extension::IdIsValid(result));
-  return result;
-}
-
 scoped_refptr<Extension> CreateExtensionWithID(std::string id) {
   DictionaryValue values;
   values.SetString(extension_manifest_keys::kName, "test");