Plumbing mipmaps to the point of creation.

src/gpu/SkGr.cpp

Index: src/gpu/SkGr.cpp
diff --git a/src/gpu/SkGr.cpp b/src/gpu/SkGr.cpp
index 2127c367444cf86e7e58584556187d6e4368a3d9..60736da5723e430237c6d8b18b60d2831deaf759 100644
--- a/src/gpu/SkGr.cpp
+++ b/src/gpu/SkGr.cpp
@@ -394,6 +394,14 @@ GrTexture* GrGenerateMipMapsAndUploadToTexture(GrContext* ctx, const SkBitmap& b
                                                           mipLevelCount);
 }
 
+GrTexture* GrUploadMipMapToTexture(GrContext* ctx, const SkImageInfo& info,
+                                   const GrMipLevel* texels, int mipLevelCount) {
+    const GrCaps* caps = ctx->caps();
+    return ctx->textureProvider()->createMipMappedTexture(GrImageInfoToSurfaceDesc(info, *caps),
+                                                          SkBudgeted::kYes, texels,
+                                                          mipLevelCount);
+}
+
 GrTexture* GrRefCachedBitmapTexture(GrContext* ctx, const SkBitmap& bitmap,
                                     const GrTextureParams& params) {
     if (bitmap.getTexture()) {