Remove unneeded IconLoader::image_

chrome/browser/icon_loader_win.cc

Index: chrome/browser/icon_loader_win.cc
diff --git a/chrome/browser/icon_loader_win.cc b/chrome/browser/icon_loader_win.cc
index 279c819cc4921be1305b31d9d2ef7a55d8c71c81..035c759e42bf6a19c5ddd051d94bdad3c9a87ed9 100644
--- a/chrome/browser/icon_loader_win.cc
+++ b/chrome/browser/icon_loader_win.cc
@@ -8,6 +8,7 @@
 #include <shellapi.h>
 
 #include "base/bind.h"
+#include "base/memory/ptr_util.h"
 #include "base/message_loop/message_loop.h"
 #include "base/threading/thread.h"
 #include "third_party/skia/include/core/SkBitmap.h"
@@ -49,7 +50,7 @@ void IconLoader::ReadIcon() {
       NOTREACHED();
   }
 
-  image_.reset();
+  std::unique_ptr<gfx::Image> image;
 
   SHFILEINFO file_info = { 0 };
   if (SHGetFileInfo(group_.c_str(), FILE_ATTRIBUTE_NORMAL, &file_info,
@@ -61,12 +62,12 @@ void IconLoader::ReadIcon() {
       gfx::ImageSkia image_skia(gfx::ImageSkiaRep(*bitmap,
                                                   display::win::GetDPIScale()));
       image_skia.MakeThreadSafe();
-      image_.reset(new gfx::Image(image_skia));
+      image = base::MakeUnique<gfx::Image>(image_skia);
       DestroyIcon(file_info.hIcon);
     }
   }
 
   target_task_runner_->PostTask(
-      FROM_HERE, base::Bind(callback_, base::Passed(&image_), group_));
+      FROM_HERE, base::Bind(callback_, base::Passed(&image), group_));
   delete this;
 }