Convert //tools to use std::unique_ptr

tools/gn/eclipse_writer.cc

 // Copyright 2016 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 "tools/gn/eclipse_writer.h"
 
 #include <fstream>
+#include <memory>
 
 #include "base/files/file_path.h"
-#include "base/memory/scoped_ptr.h"
 #include "tools/gn/builder.h"
 #include "tools/gn/config_values_extractors.h"
 #include "tools/gn/filesystem_utils.h"
 #include "tools/gn/loader.h"
 #include "tools/gn/xml_element_writer.h"
 
 namespace {
 
 // Escapes |unescaped| for use in XML element content.
 std::string EscapeForXML(const std::string& unescaped) {
@@ skipping 99 matching lines @@
 }
 
 void EclipseWriter::WriteCDTSettings() {
   out_ << "<?xml version=\"1.0\" encoding=\"UTF-8\"?>" << std::endl;
   XmlElementWriter cdt_properties_element(out_, "cdtprojectproperties",
                                           XmlAttributes());
 
   {
     const char* kIncludesSectionName =
         "org.eclipse.cdt.internal.ui.wizards.settingswizards.IncludePaths";
-    scoped_ptr<XmlElementWriter> section_element =
+    std::unique_ptr<XmlElementWriter> section_element =
         cdt_properties_element.SubElement(
             "section", XmlAttributes("name", kIncludesSectionName));
 
     section_element->SubElement(
         "language", XmlAttributes("name", "holder for library settings"));
 
     for (const std::string& language : languages_) {
-      scoped_ptr<XmlElementWriter> language_element =
+      std::unique_ptr<XmlElementWriter> language_element =
           section_element->SubElement("language",
                                       XmlAttributes("name", language));
       for (const std::string& include_dir : include_dirs_) {
         language_element
             ->SubElement("includepath",
                          XmlAttributes("workspace_path", "false"))
             ->Text(EscapeForXML(include_dir));
       }
     }
   }
 
   {
     const char* kMacrosSectionName =
         "org.eclipse.cdt.internal.ui.wizards.settingswizards.Macros";
-    scoped_ptr<XmlElementWriter> section_element =
+    std::unique_ptr<XmlElementWriter> section_element =
         cdt_properties_element.SubElement(
             "section", XmlAttributes("name", kMacrosSectionName));
 
     section_element->SubElement(
         "language", XmlAttributes("name", "holder for library settings"));
 
     for (const std::string& language : languages_) {
-      scoped_ptr<XmlElementWriter> language_element =
+      std::unique_ptr<XmlElementWriter> language_element =
           section_element->SubElement("language",
                                       XmlAttributes("name", language));
       for (const auto& key_val : defines_) {
-        scoped_ptr<XmlElementWriter> macro_element =
+        std::unique_ptr<XmlElementWriter> macro_element =
             language_element->SubElement("macro");
         macro_element->SubElement("name")->Text(EscapeForXML(key_val.first));
         macro_element->SubElement("value")->Text(EscapeForXML(key_val.second));
       }
     }
   }
 }