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

chrome/browser/policy/policy_map_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 "chrome/browser/policy/policy_map.h"
 
 #include <set>
 #include <string>
 
 #include "base/memory/scoped_ptr.h"
@@ skipping 85 matching lines @@
   a.Set(key::kDefaultSearchProviderSearchURL, POLICY_LEVEL_RECOMMENDED,
         POLICY_SCOPE_MACHINE, Value::CreateStringValue("google.com/q={x}"));
 
   PolicyMap b;
   b.Set(key::kHomepageLocation, POLICY_LEVEL_MANDATORY, POLICY_SCOPE_MACHINE,
         Value::CreateStringValue("chromium.org"));
   b.Set(key::kShowHomeButton, POLICY_LEVEL_MANDATORY, POLICY_SCOPE_MACHINE,
         Value::CreateBooleanValue(false));
   b.Set(key::kBookmarkBarEnabled, POLICY_LEVEL_RECOMMENDED,
         POLICY_SCOPE_MACHINE, Value::CreateBooleanValue(true));
-  b.Set(key::kDefaultSearchProviderSearchURL, POLICY_LEVEL_MANDATORY,
-        POLICY_SCOPE_MACHINE, Value::CreateStringValue(""));
-  b.Set(key::kDisableSpdy, POLICY_LEVEL_RECOMMENDED, POLICY_SCOPE_USER,
+  b.Set(key::kDefaultSearchProviderSearchURL,
+        POLICY_LEVEL_MANDATORY,
+        POLICY_SCOPE_MACHINE,
+        Value::CreateStringValue(std::string()));
+  b.Set(key::kDisableSpdy,
+        POLICY_LEVEL_RECOMMENDED,
+        POLICY_SCOPE_USER,
         Value::CreateBooleanValue(true));
 
   a.MergeFrom(b);
 
   PolicyMap c;
   // POLICY_SCOPE_MACHINE over POLICY_SCOPE_USER.
   c.Set(key::kHomepageLocation, POLICY_LEVEL_MANDATORY, POLICY_SCOPE_MACHINE,
         Value::CreateStringValue("chromium.org"));
   // |a| has precedence over |b|.
   c.Set(key::kShowHomeButton, POLICY_LEVEL_MANDATORY, POLICY_SCOPE_MACHINE,
         Value::CreateBooleanValue(true));
   // POLICY_SCOPE_MACHINE over POLICY_SCOPE_USER for POLICY_LEVEL_RECOMMENDED.
   c.Set(key::kBookmarkBarEnabled, POLICY_LEVEL_RECOMMENDED,
         POLICY_SCOPE_MACHINE, Value::CreateBooleanValue(true));
   // POLICY_LEVEL_MANDATORY over POLICY_LEVEL_RECOMMENDED.
-  c.Set(key::kDefaultSearchProviderSearchURL, POLICY_LEVEL_MANDATORY,
-        POLICY_SCOPE_MACHINE, Value::CreateStringValue(""));
+  c.Set(key::kDefaultSearchProviderSearchURL,
+        POLICY_LEVEL_MANDATORY,
+        POLICY_SCOPE_MACHINE,
+        Value::CreateStringValue(std::string()));
   // Merge new ones.
   c.Set(key::kDisableSpdy, POLICY_LEVEL_RECOMMENDED, POLICY_SCOPE_USER,
         Value::CreateBooleanValue(true));
 
   EXPECT_TRUE(a.Equals(c));
 }
 
 TEST(PolicyMapTest, GetDifferingKeys) {
   PolicyMap a;
   a.Set(key::kHomepageLocation, POLICY_LEVEL_MANDATORY, POLICY_SCOPE_USER,
@@ skipping 37 matching lines @@
   EXPECT_TRUE(diff.find(key::kDisableSpdy) != diff.end());
   // Not in |b|.
   EXPECT_TRUE(diff.find(key::kDisable3DAPIs) != diff.end());
   // No surprises.
   EXPECT_EQ(5u, diff.size());
 }
 
 }  // namespace
 
 }  // namespace policy