Convert //chrome from scoped_ptr to std::unique_ptr

chrome/app/chrome_watcher_command_line_win.h

Index: chrome/app/chrome_watcher_command_line_win.h
diff --git a/chrome/app/chrome_watcher_command_line_win.h b/chrome/app/chrome_watcher_command_line_win.h
index 3f4c5685648dcb1f34257250027525289d50a161..4c445d980b13ad04e9df395ccba01f6a3c516e7c 100644
--- a/chrome/app/chrome_watcher_command_line_win.h
+++ b/chrome/app/chrome_watcher_command_line_win.h
@@ -6,11 +6,12 @@
 #define CHROME_APP_CHROME_WATCHER_COMMAND_LINE_WIN_H_
 
 #include <windows.h>
+
+#include <memory>
 #include <vector>
 
 #include "base/command_line.h"
 #include "base/files/file_path.h"
-#include "base/memory/scoped_ptr.h"
 #include "base/win/scoped_handle.h"
 
 // Class for configuring the Chrome watcher process via the command-line. This
@@ -75,7 +76,7 @@ class ChromeWatcherCommandLine {
   // If this fails any successfully opened handles will be closed prior to
   // return. Returns a ChromeWatcherCommandLine object on success, nullptr
   // otherwise.
-  static scoped_ptr<ChromeWatcherCommandLine> InterpretCommandLine(
+  static std::unique_ptr<ChromeWatcherCommandLine> InterpretCommandLine(
       const base::CommandLine& command_line);
 
   // Accessors for handles. Any handles not taken from this object at the time