[cros] Remove redundant PNG enconding in UserImage.

chrome/browser/chromeos/login/user_image.cc

 // Copyright (c) 2012 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 "chrome/browser/chromeos/login/user_image.h"
 
 #include "ui/gfx/codec/png_codec.h"
 
 namespace chromeos {
 
 namespace {
 
 bool IsAnimatedImage(const UserImage::RawImage& data) {
   const char kGIFStamp[] = "GIF";
   const size_t kGIFStampLength = sizeof(kGIFStamp) - 1;
 
   if (data.size() >= kGIFStampLength &&
       memcmp(&data[0], kGIFStamp, kGIFStampLength) == 0) {
     return true;
   }
   return false;
 }
 
 }  // namespace
 
+UserImage::UserImage()
+    : has_raw_image_(false),
+      has_animated_image_(false) {
+}
+
 UserImage::UserImage(const gfx::ImageSkia& image)
     : image_(image),
       has_raw_image_(false),
       has_animated_image_(false) {
-  if (gfx::PNGCodec::EncodeBGRASkBitmap(image_, false, &raw_image_))
-    has_raw_image_ = true;
 }
 
 UserImage::UserImage(const gfx::ImageSkia& image,
                      const RawImage& raw_image)
     : image_(image),
       has_raw_image_(false),
       has_animated_image_(false) {
   if (IsAnimatedImage(raw_image)) {
     has_animated_image_ = true;
     animated_image_ = raw_image;
+    if (gfx::PNGCodec::EncodeBGRASkBitmap(image_, false, &raw_image_))
+      has_raw_image_ = true;
+  } else {
+    has_raw_image_ = true;
+    raw_image_ = raw_image;
   }
-  if (gfx::PNGCodec::EncodeBGRASkBitmap(image_, false, &raw_image_))
-    has_raw_image_ = true;
 }
 
 UserImage::~UserImage() {}
 
-void UserImage::SetImage(const gfx::ImageSkia& image) {
-  image_ = image;
-  if (gfx::PNGCodec::EncodeBGRASkBitmap(image_, false, &raw_image_)) {
-    has_raw_image_ = true;
-  } else {
-    has_raw_image_ = false;
-    RawImage().swap(raw_image_);  // Clear |raw_image_|.
-  }
-
-  has_animated_image_ = false;
-  if (!animated_image_.empty())
-    RawImage().swap(animated_image_);  // Clear |animated_image_|.
-}
-
 }  // namespace chromeos