Add LATC to alpha only pixel config

include/gpu/GrTypes.h

 
 /*
  * Copyright 2010 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 
 
@@ skipping 345 matching lines @@
         case kETC1_GrPixelConfig:
         case kRGB_565_GrPixelConfig:
             return true;
         default:
             return false;
     }
 }
 
 static inline bool GrPixelConfigIsAlphaOnly(GrPixelConfig config) {
     switch (config) {
+        case kLATC_GrPixelConfig:
         case kAlpha_8_GrPixelConfig:
             return true;
         default:
             return false;
     }
 }
 
 /**
  * Optional bitfield flags that can be passed to createTexture.
  */
@@ skipping 278 matching lines @@
 }
 
 /**
  * This value translates to reseting all the context state for any backend.
  */
 static const uint32_t kAll_GrBackendState = 0xffffffff;
 
 ///////////////////////////////////////////////////////////////////////////////
 
 #endif