Always use AwesomeResampling for lazy decoded images.

Source/platform/graphics/skia/NativeImageSkia.cpp

Index: Source/platform/graphics/skia/NativeImageSkia.cpp
diff --git a/Source/platform/graphics/skia/NativeImageSkia.cpp b/Source/platform/graphics/skia/NativeImageSkia.cpp
index f3a4967b05698379378b1cc40e87f525a0348bfa..4d96445ef2ac636ea694476c8930d2814d5cebea 100644
--- a/Source/platform/graphics/skia/NativeImageSkia.cpp
+++ b/Source/platform/graphics/skia/NativeImageSkia.cpp
@@ -375,12 +375,14 @@ void NativeImageSkia::draw(GraphicsContext* context, const SkRect& srcRect, cons
     paint.setLooper(context->drawLooper());
     paint.setAntiAlias(shouldDrawAntiAliased(context, destRect));
 
-    ResamplingMode resampling;
+    bool isLazyDecoded = DeferredImageDecoder::isLazyDecoded(bitmap());
+
+    ResamplingMode resampling = AwesomeResampling;
     if (context->isAccelerated()) {
         resampling = LinearResampling;
     } else if (context->printing()) {
         resampling = NoResampling;
-    } else {
+    } else if (!isLazyDecoded) {
         // Take into account scale applied to the canvas when computing sampling mode (e.g. CSS scale or page scale).
         SkRect destRectTarget = destRect;
         SkMatrix totalMatrix = context->getTotalMatrix();
@@ -400,7 +402,6 @@ void NativeImageSkia::draw(GraphicsContext* context, const SkRect& srcRect, cons
     }
     resampling = limitResamplingMode(context, resampling);
 
-    bool isLazyDecoded = DeferredImageDecoder::isLazyDecoded(bitmap());
     // FIXME: Bicubic filtering in Skia is only applied to defer-decoded images
     // as an experiment. Once this filtering code path becomes stable we should
     // turn this on for all cases, including non-defer-decoded images.
@@ -469,18 +470,19 @@ void NativeImageSkia::drawPattern(
     float destBitmapWidth = SkScalarToFloat(destRectTarget.width());
     float destBitmapHeight = SkScalarToFloat(destRectTarget.height());
 
+    bool isLazyDecoded = DeferredImageDecoder::isLazyDecoded(bitmap());
+
     // Compute the resampling mode.
-    ResamplingMode resampling;
+    ResamplingMode resampling = AwesomeResampling;

[Stephen White, 2014/05/07 18:16:31]

Same here.

[reveman, 2014/05/07 19:00:46]

Done.

     if (context->isAccelerated() || context->printing())
         resampling = LinearResampling;
-    else
+    else if (!isLazyDecoded)
         resampling = computeResamplingMode(totalMatrix, normSrcRect.width(), normSrcRect.height(), destBitmapWidth, destBitmapHeight);
     resampling = limitResamplingMode(context, resampling);
 
     SkMatrix shaderTransform;
     RefPtr<SkShader> shader;
 
-    bool isLazyDecoded = DeferredImageDecoder::isLazyDecoded(bitmap());
     // Bicubic filter is only applied to defer-decoded images, see
     // NativeImageSkia::draw for details.
     bool useBicubicFilter = resampling == AwesomeResampling && isLazyDecoded;