Pull texture-backed bitmap resampler out of GrTextureParamsAdjuster code into its own class.

Review URL: https://codereview.chromium.org/1420963008
diff --git a/src/gpu/GrGpu.cpp b/src/gpu/GrGpu.cpp
index 4970a63..439fe1b 100644
--- a/src/gpu/GrGpu.cpp
+++ b/src/gpu/GrGpu.cpp
@@ -56,7 +56,7 @@
 ////////////////////////////////////////////////////////////////////////////////
 
 bool GrGpu::makeCopyForTextureParams(int width, int height, const GrTextureParams& textureParams,
-                                     GrTextureParamsAdjuster::CopyParams* copyParams) const {
+                                     GrTextureProducer::CopyParams* copyParams) const {
     const GrCaps& caps = *this->caps();
     if (textureParams.isTiled() && !caps.npotTextureTileSupport() &&
         (!SkIsPow2(width) || !SkIsPow2(height))) {