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

webkit/media/crypto/key_systems_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 "testing/gtest/include/gtest/gtest.h"
 #include "third_party/WebKit/Source/Platform/chromium/public/WebString.h"
 #include "webkit/media/crypto/key_systems.h"
@@ skipping 215 matching lines @@
 
   // There are no child key systems for Clear Key.
   EXPECT_FALSE(IsSupportedKeySystem("webkit-org.w3.clearkey.foo"));
   EXPECT_FALSE(IsSupportedKeySystemWithMediaMimeType(
       "video/webm", no_codecs(), "webkit-org.w3.clearkey.foo"));
 }
 
 TEST_F(KeySystemsTest, IsSupportedKeySystemWithMediaMimeType_ClearKey_NoType) {
   // These two should be true. See http://crbug.com/164303.
   EXPECT_FALSE(IsSupportedKeySystemWithMediaMimeType(
-      "", no_codecs(), kClearKey));
+      std::string(), no_codecs(), kClearKey));
   EXPECT_FALSE(IsSupportedKeySystemWithMediaMimeType(
-      "", no_codecs(), "webkit-org.w3"));
+      std::string(), no_codecs(), "webkit-org.w3"));
 
   EXPECT_FALSE(IsSupportedKeySystemWithMediaMimeType(
-      "", no_codecs(), "webkit-org.w3.foo"));
+      std::string(), no_codecs(), "webkit-org.w3.foo"));
   EXPECT_FALSE(IsSupportedKeySystemWithMediaMimeType(
-      "", no_codecs(), "webkit-org.w3.clearkey.foo"));
+      std::string(), no_codecs(), "webkit-org.w3.clearkey.foo"));
 }
 
 TEST_F(KeySystemsTest, IsSupportedKeySystemWithMediaMimeType_ClearKey_WebM) {
   // Valid video types.
   EXPECT_TRUE(IsSupportedKeySystemWithMediaMimeType(
       "video/webm", no_codecs(), kClearKey));
   // The parent should be supported but is not. See http://crbug.com/164303.
   EXPECT_FALSE(IsSupportedKeySystemWithMediaMimeType(
       "video/webm", no_codecs(), "webkit-org.w3"));
   EXPECT_TRUE(IsSupportedKeySystemWithMediaMimeType(
@@ skipping 158 matching lines @@
   EXPECT_FALSE(IsSupportedKeySystem("org.chromium.externalclearkey.foo"));
   EXPECT_FALSE(IsSupportedKeySystemWithMediaMimeType(
       "video/webm", no_codecs(),
       "org.chromium.externalclearkey.foo"));
 }
 
 TEST_F(KeySystemsTest,
        IsSupportedKeySystemWithMediaMimeType_ExternalClearKey_NoType) {
   // These two should be true. See http://crbug.com/164303.
   EXPECT_FALSE(IsSupportedKeySystemWithMediaMimeType(
-      "", no_codecs(), kExternalClearKey));
+      std::string(), no_codecs(), kExternalClearKey));
   EXPECT_FALSE(IsSupportedKeySystemWithMediaMimeType(
-      "", no_codecs(), "org.chromium"));
+      std::string(), no_codecs(), "org.chromium"));
 
   EXPECT_FALSE(IsSupportedKeySystemWithMediaMimeType(
-      "", no_codecs(), "org.chromium.foo"));
+      std::string(), no_codecs(), "org.chromium.foo"));
   EXPECT_FALSE(IsSupportedKeySystemWithMediaMimeType(
-      "", no_codecs(), "org.chromium.externalclearkey.foo"));
+      std::string(), no_codecs(), "org.chromium.externalclearkey.foo"));
 }
 
 TEST_F(KeySystemsTest,
        IsSupportedKeySystemWithMediaMimeType_ExternalClearKey_WebM) {
   // Valid video types.
   EXPECT_TRUE(IsSupportedKeySystemWithMediaMimeType(
       "video/webm", no_codecs(), kExternalClearKey));
   // The parent should be supported but is not. See http://crbug.com/164303.
   EXPECT_FALSE(IsSupportedKeySystemWithMediaMimeType(
       "video/webm", no_codecs(), "org.chromium"));
@@ skipping 159 matching lines @@
 
   // There are no child key systems for Widevine Alpha.
   EXPECT_FALSE(IsSupportedKeySystem("com.widevine.alpha.foo"));
   EXPECT_FALSE(IsSupportedKeySystemWithMediaMimeType(
       "video/webm", no_codecs(), "com.widevine.alpha.foo"));
 }
 
 TEST_F(KeySystemsTest, IsSupportedKeySystemWithMediaMimeType_Widevine_NoType) {
   // These two should be true. See http://crbug.com/164303.
   EXPECT_FALSE(IsSupportedKeySystemWithMediaMimeType(
-      "", no_codecs(), kWidevineAlpha));
+      std::string(), no_codecs(), kWidevineAlpha));
   EXPECT_FALSE(IsSupportedKeySystemWithMediaMimeType(
-      "", no_codecs(), kWidevine));
+      std::string(), no_codecs(), kWidevine));
 
   EXPECT_FALSE(IsSupportedKeySystemWithMediaMimeType(
-      "", no_codecs(), "com.widevine.foo"));
+      std::string(), no_codecs(), "com.widevine.foo"));
   EXPECT_FALSE(IsSupportedKeySystemWithMediaMimeType(
-      "", no_codecs(), "com.widevine.alpha.foo"));
+      std::string(), no_codecs(), "com.widevine.alpha.foo"));
 }
 
 TEST_F(KeySystemsTest, IsSupportedKeySystemWithMediaMimeType_Widevine_WebM) {
   // Valid video types.
   EXPECT_WV(IsSupportedKeySystemWithMediaMimeType(
       "video/webm", no_codecs(), kWidevineAlpha));
   EXPECT_WV(IsSupportedKeySystemWithMediaMimeType(
       "video/webm", vp8_codec(), kWidevineAlpha));
   EXPECT_WV(IsSupportedKeySystemWithMediaMimeType(
       "video/webm", vp80_codec(), kWidevineAlpha));
@@ skipping 102 matching lines @@
       "audio/mp4", avc1_codec(), kWidevineAlpha));
   EXPECT_FALSE(IsSupportedKeySystemWithMediaMimeType(
       "audio/mp4", avc1_and_aac_codecs(), kWidevineAlpha));
 
   // Non-MP4 codec.
   EXPECT_FALSE(IsSupportedKeySystemWithMediaMimeType(
       "audio/mp4", vorbis_codec(), kWidevineAlpha));
 }
 
 }  // namespace webkit_media