chromeos: Fix pixelated icons in app list and launcher (part 1)

ash/launcher/launcher_button.cc

Index: ash/launcher/launcher_button.cc
diff --git a/ash/launcher/launcher_button.cc b/ash/launcher/launcher_button.cc
index 7c41621bcd4cb52ffccf50226f636edbc66eef81..727c77f23c8efbbda880b97a6fdc33a33c52621c 100644
--- a/ash/launcher/launcher_button.cc
+++ b/ash/launcher/launcher_button.cc
@@ -9,7 +9,6 @@
 
 #include "ash/launcher/launcher_button_host.h"
 #include "grit/ui_resources.h"
-#include "skia/ext/image_operations.h"
 #include "ui/base/accessibility/accessible_view_state.h"
 #include "ui/base/animation/animation_delegate.h"
 #include "ui/base/animation/throb_animation.h"
@@ -21,8 +20,8 @@
 #include "ui/compositor/scoped_layer_animation_settings.h"
 #include "ui/gfx/canvas.h"
 #include "ui/gfx/image/image.h"
+#include "ui/gfx/image/image_skia_sources.h"
 #include "ui/gfx/shadow_value.h"
-#include "ui/gfx/skbitmap_operations.h"
 #include "ui/gfx/transform_util.h"
 #include "ui/views/controls/image_view.h"
 
@@ -235,19 +234,25 @@ LauncherButton::LauncherButton(views::ButtonListener* listener,
 LauncherButton::~LauncherButton() {
 }
 
-void LauncherButton::SetShadowedImage(const SkBitmap& bitmap) {
+void LauncherButton::SetShadowedImage(const gfx::ImageSkia& image) {
   const gfx::ShadowValue kShadows[] = {
     gfx::ShadowValue(gfx::Point(0, 2), 0, SkColorSetARGB(0x1A, 0, 0, 0)),
     gfx::ShadowValue(gfx::Point(0, 3), 1, SkColorSetARGB(0x1A, 0, 0, 0)),
     gfx::ShadowValue(gfx::Point(0, 0), 1, SkColorSetARGB(0x54, 0, 0, 0)),
   };
 
-  SkBitmap shadowed_bitmap = SkBitmapOperations::CreateDropShadow(
-      bitmap, gfx::ShadowValues(kShadows, kShadows + arraysize(kShadows)));
-  icon_view_->SetImage(shadowed_bitmap);
+  const gfx::ShadowValues shadows(kShadows, kShadows + arraysize(kShadows));
+  const gfx::Insets shadow_padding = -gfx::ShadowValue::GetMargin(shadows);
+  gfx::Size shadow_image_size = image.size();
+  shadow_image_size.Enlarge(shadow_padding.width(),
+                            shadow_padding.height());
+
+  icon_view_->SetImage(gfx::ImageSkia(
+      gfx::image_skia_sources::CreateDropShadowSource(image, shadows),
+      shadow_image_size));
 }
 
-void LauncherButton::SetImage(const SkBitmap& image) {
+void LauncherButton::SetImage(const gfx::ImageSkia& image) {
   if (image.empty()) {
     // TODO: need an empty image.
     icon_view_->SetImage(image);
@@ -275,9 +280,10 @@ void LauncherButton::SetImage(const SkBitmap& image) {
     return;
   }
 
-  SkBitmap resized_image = skia::ImageOperations::Resize(
-      image, skia::ImageOperations::RESIZE_BEST, width, height);
-  SetShadowedImage(resized_image);
+  const gfx::Size size(width, height);
+  SetShadowedImage(gfx::ImageSkia(
+      gfx::image_skia_sources::CreateResizeSource(image, size),
+      size));
 }
 
 void LauncherButton::AddState(State state) {