Revert of Large wallpaper decoding in utility process

chrome/browser/chromeos/extensions/wallpaper_function_base.cc

Index: chrome/browser/chromeos/extensions/wallpaper_function_base.cc
diff --git a/chrome/browser/chromeos/extensions/wallpaper_function_base.cc b/chrome/browser/chromeos/extensions/wallpaper_function_base.cc
index 6e89013d2c9210877ffc3f8cc5c7a66b7ca0d21d..5d98a2ddd32826f187e4e61cd0bedac103219f6f 100644
--- a/chrome/browser/chromeos/extensions/wallpaper_function_base.cc
+++ b/chrome/browser/chromeos/extensions/wallpaper_function_base.cc
@@ -56,8 +56,6 @@
     CHECK(chromeos::LoginState::Get()->IsUserLoggedIn());
     unsafe_image_decoder_ = new ImageDecoder(this, image_data,
                                              ImageDecoder::DEFAULT_CODEC);
-    unsafe_image_decoder_->set_shrink_to_fit(true);
-
     scoped_refptr<base::MessageLoopProxy> task_runner =
         BrowserThread::GetMessageLoopProxyForThread(BrowserThread::UI);
     unsafe_image_decoder_->Start(task_runner);