Mojo: Convert some scoped_ptr<...>(new ...) to make_scoped_ptr(new ...) in mojo/{embedder,system}.

mojo/embedder/simple_platform_shared_buffer_posix.cc

Index: mojo/embedder/simple_platform_shared_buffer_posix.cc
diff --git a/mojo/embedder/simple_platform_shared_buffer_posix.cc b/mojo/embedder/simple_platform_shared_buffer_posix.cc
index 9a111735eef9b97512c75373512b88b64fb8af1a..1dd4b01a3be29d2baa277d26e02d2c662d2506a7 100644
--- a/mojo/embedder/simple_platform_shared_buffer_posix.cc
+++ b/mojo/embedder/simple_platform_shared_buffer_posix.cc
@@ -141,9 +141,8 @@ scoped_ptr<PlatformSharedBufferMapping> SimplePlatformSharedBuffer::MapImpl(
   }
 
   void* base = static_cast<char*>(real_base) + offset_rounding;
-  return scoped_ptr<PlatformSharedBufferMapping>(
-      new SimplePlatformSharedBufferMapping(
-          base, length, real_base, real_length));
+  return make_scoped_ptr(new SimplePlatformSharedBufferMapping(
+      base, length, real_base, real_length));
 }
 
 // SimplePlatformSharedBufferMapping -------------------------------------------