Initial work to get ETC1 data up to the GPU

include/gpu/GrContext.h

Index: include/gpu/GrContext.h
diff --git a/include/gpu/GrContext.h b/include/gpu/GrContext.h
index 5b7ef25cedff043170e9edb36d194367e914953d..c54f2e6b234ed670d377890d667ba0ecca21ca7a 100644
--- a/include/gpu/GrContext.h
+++ b/include/gpu/GrContext.h
@@ -204,10 +204,11 @@ public:
      *                  for different wrap modes on GPUs with limited NPOT
      *                  texture support). NULL implies clamp wrap modes.
      * @param desc      Description of the texture properties.
-     * @param cacheID Cache-specific properties (e.g., texture gen ID)
+     * @param cacheID   Cache-specific properties (e.g., texture gen ID)
      * @param srcData   Pointer to the pixel values.
      * @param rowBytes  The number of bytes between rows of the texture. Zero
-     *                  implies tightly packed rows.
+     *                  implies tightly packed rows. For compressed pixel configs, this
+     *                  field is ignored.
      * @param cacheKey  (optional) If non-NULL, we'll write the cache key we used to cacheKey.
      */
     GrTexture* createTexture(const GrTextureParams* params,
@@ -216,7 +217,6 @@ public:
                              const void* srcData,
                              size_t rowBytes,
                              GrResourceKey* cacheKey = NULL);
-
     /**
      * Search for an entry based on key and dimensions. If found, ref it and return it. The return
      * value will be NULL if not found. The caller must balance with a call to unref.