Rewrite std::string("") to std::string(), Linux edition.

media/crypto/aes_decryptor_unittest.cc

 // Copyright (c) 2012 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 <string>
 #include <vector>
 
 #include "base/basictypes.h"
 #include "base/bind.h"
 #include "media/base/decoder_buffer.h"
@@ skipping 224 matching lines @@
         decrypt_cb_(base::Bind(&AesDecryptorTest::BufferDecrypted,
                                base::Unretained(this))),
         subsample_entries_(kSubsampleEntries,
                            kSubsampleEntries + arraysize(kSubsampleEntries)) {
   }
 
  protected:
   void GenerateKeyRequest(const uint8* key_id, int key_id_size) {
     std::string key_id_string(reinterpret_cast<const char*>(key_id),
                               key_id_size);
-    EXPECT_CALL(*this, KeyMessage(kClearKeySystem,
-                                  StrNe(""), StrEq(key_id_string), ""))
+    EXPECT_CALL(
+        *this,
+        KeyMessage(
+            kClearKeySystem, StrNe(std::string()), StrEq(key_id_string), ""))
         .WillOnce(SaveArg<1>(&session_id_string_));
-    EXPECT_TRUE(decryptor_.GenerateKeyRequest(kClearKeySystem, "",
-                                              key_id, key_id_size));
+    EXPECT_TRUE(decryptor_.GenerateKeyRequest(
+        kClearKeySystem, std::string(), key_id, key_id_size));
   }
 
   void AddKeyAndExpectToSucceed(const uint8* key_id, int key_id_size,
                                 const uint8* key, int key_size) {
     EXPECT_CALL(*this, KeyAdded(kClearKeySystem, session_id_string_));
     decryptor_.AddKey(kClearKeySystem, key, key_size, key_id, key_id_size,
                       session_id_string_);
   }
 
   void AddKeyAndExpectToFail(const uint8* key_id, int key_id_size,
@@ skipping 58 matching lines @@
                                 const std::string& message,
                                 const std::string& default_url));
 
   AesDecryptor decryptor_;
   std::string session_id_string_;
   AesDecryptor::DecryptCB decrypt_cb_;
   std::vector<SubsampleEntry> subsample_entries_;
 };
 
 TEST_F(AesDecryptorTest, GenerateKeyRequestWithNullInitData) {
-  EXPECT_CALL(*this, KeyMessage(kClearKeySystem, StrNe(""), "", ""));
-  EXPECT_TRUE(decryptor_.GenerateKeyRequest(kClearKeySystem, "", NULL, 0));
+  EXPECT_CALL(*this, KeyMessage(kClearKeySystem, StrNe(std::string()), "", ""));
+  EXPECT_TRUE(
+      decryptor_.GenerateKeyRequest(kClearKeySystem, std::string(), NULL, 0));
 }
 
 TEST_F(AesDecryptorTest, NormalWebMDecryption) {
   const WebmEncryptedData& frame = kWebmEncryptedFrames[0];
   GenerateKeyRequest(frame.key_id, frame.key_id_size);
   AddKeyAndExpectToSucceed(frame.key_id, frame.key_id_size,
                            frame.key, frame.key_size);
   scoped_refptr<DecoderBuffer> encrypted_data =
       CreateWebMEncryptedBuffer(frame.encrypted_data,
                                 frame.encrypted_data_size,
@@ skipping 256 matching lines @@
   scoped_refptr<DecoderBuffer> encrypted_data = CreateSubsampleEncryptedBuffer(
       kSubsampleData, arraysize(kSubsampleData),
       kSubsampleKeyId, arraysize(kSubsampleKeyId),
       kSubsampleIv, arraysize(kSubsampleIv),
       0,
       entries);
   ASSERT_NO_FATAL_FAILURE(DecryptAndExpectToFail(encrypted_data));
 }
 
 }  // namespace media