Rebase and fix chromium

Combine texture provider and resource provider

Largely mechanical. Only three places that were calling createApprox
via texture provider (ie without flags), so that was simple.

BUG=skia:

Change-Id: I876367bcdc6a8db736deedab1028de1972015509
Reviewed-on: https://skia-review.googlesource.com/9176
Commit-Queue: Brian Osman <brianosman@google.com>
Reviewed-by: Brian Salomon <bsalomon@google.com>
diff --git a/tools/gpu/GrTest.cpp b/tools/gpu/GrTest.cpp
index 4df328c..ef3cc48 100644
--- a/tools/gpu/GrTest.cpp
+++ b/tools/gpu/GrTest.cpp
@@ -130,7 +130,7 @@
         return nullptr;
     }
 
-    GrTexture* tex = proxy->instantiate(this->textureProvider());
+    GrTexture* tex = proxy->instantiate(this->resourceProvider());
     if (!tex) {
         return nullptr;
     }