Creating functions for uploading a mipmapped texture.

include/gpu/GrTextureProvider.h

Index: include/gpu/GrTextureProvider.h
diff --git a/include/gpu/GrTextureProvider.h b/include/gpu/GrTextureProvider.h
index 338dddbaca87f0a87c89c29129afad0ae3fadac4..6debf9b7da1ae93136599dd7e962633c9759b046 100644
--- a/include/gpu/GrTextureProvider.h
+++ b/include/gpu/GrTextureProvider.h
@@ -10,6 +10,8 @@
 
 #include "GrTexture.h"
 #include "SkImageFilter.h"
+#include "SkMipMapLevel.h"
+#include "SkTArray.h"
 
 class GrSingleOwner;
 
@@ -22,8 +24,17 @@ public:
      * Creates a new texture in the resource cache and returns it. The caller owns a
      * ref on the returned texture which must be balanced by a call to unref.
      *
-     * @param desc      Description of the texture properties.
-     * @param budgeted  Does the texture count against the resource cache budget?
+     * @param desc     Description of the texture properties.
+     * @param budgeted Does the texture count against the resource cache budget?
+     * @param texels   An array of mipmap levels
+     */
+    GrTexture* createTexture(const GrSurfaceDesc& desc, bool budgeted,
+                             const SkTArray<SkMipMapLevel>& texels);

[reed1, 2016/01/22 16:29:13]

Why is this a TArray, instead of just [],count? In general we try to not require
our contains to be used for our public API.

[Chris Blume, 2016/01/25 08:18:00]

Done.

+
+    /**
+     * This function is a shim which creates a SkTArray<SkMipMapLevel> of size 1.
+     * It then calls createTexture with that SkTArray.
+     *
      * @param srcData   Pointer to the pixel values (optional).
      * @param rowBytes  The number of bytes between rows of the texture. Zero
      *                  implies tightly packed rows. For compressed pixel configs, this