Use texture size to determine precision of texture coord varyings

include/gpu/GrTypesPriv.h

 /*
  * Copyright 2013 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef GrTypesPriv_DEFINED
 #define GrTypesPriv_DEFINED
 
@@ skipping 11 matching lines @@
     kVec3f_GrSLType,
     kVec4f_GrSLType,
     kMat33f_GrSLType,
     kMat44f_GrSLType,
     kSampler2D_GrSLType,
 
     kLast_GrSLType = kSampler2D_GrSLType
 };
 static const int kGrSLTypeCount = kLast_GrSLType + 1;
 
+enum GrShaderType {
+    kVertex_GrShaderType,
+    kGeometry_GrShaderType,
+    kFragment_GrShaderType,
+
+    kLastkFragment_GrShaderType = kFragment_GrShaderType
+};
+static const int kGrShaderTypeCount = kLastkFragment_GrShaderType + 1;
+
 /**
  * Gets the vector size of the SLType. Returns -1 for void, matrices, and samplers.
  */
 static inline int GrSLTypeVectorCount(GrSLType type) {
     SkASSERT(type >= 0 && type < static_cast<GrSLType>(kGrSLTypeCount));
     static const int kCounts[] = { -1, 1, 2, 3, 4, -1, -1, -1 };
     return kCounts[type];
 
     GR_STATIC_ASSERT(0 == kVoid_GrSLType);
     GR_STATIC_ASSERT(1 == kFloat_GrSLType);
@@ skipping 149 matching lines @@
 /**
  * Indicates the type of pending IO operations that can be recorded for gpu resources.
  */
 enum GrIOType {
     kRead_GrIOType,
     kWrite_GrIOType,
     kRW_GrIOType
 };
 
 #endif