Move some program building utils from GL to GLSL

include/gpu/GrTypesPriv.h

Index: include/gpu/GrTypesPriv.h
diff --git a/include/gpu/GrTypesPriv.h b/include/gpu/GrTypesPriv.h
index 491b23b37baf93148f692f6853a41c3e18445aba..6a9c44ff9fb9d2c38bc63f069b312a9869cf5a91 100644
--- a/include/gpu/GrTypesPriv.h
+++ b/include/gpu/GrTypesPriv.h
@@ -107,6 +107,35 @@ static inline bool GrSLTypeIsFloatType(GrSLType type) {
     GR_STATIC_ASSERT(8 == kSamplerExternal_GrSLType);
     GR_STATIC_ASSERT(9 == kGrSLTypeCount);
 }
+
+/** Returns the size in bytes for floating point GrSLTypes. For non floating point type returns 0 */
+static inline size_t GrSLTypeSize(GrSLType type) {
+    SkASSERT(GrSLTypeIsFloatType(type));
+    static const size_t kSizes[] = {
+        0,                        // kVoid_GrSLType
+        sizeof(float),            // kFloat_GrSLType
+        2 * sizeof(float),        // kVec2f_GrSLType
+        3 * sizeof(float),        // kVec3f_GrSLType
+        4 * sizeof(float),        // kVec4f_GrSLType
+        9 * sizeof(float),        // kMat33f_GrSLType
+        16 * sizeof(float),       // kMat44f_GrSLType
+        0,                        // kSampler2D_GrSLType
+        0                         // kSamplerExternal_GrSLType
+    };
+    return kSizes[type];
+
+    GR_STATIC_ASSERT(0 == kVoid_GrSLType);
+    GR_STATIC_ASSERT(1 == kFloat_GrSLType);
+    GR_STATIC_ASSERT(2 == kVec2f_GrSLType);
+    GR_STATIC_ASSERT(3 == kVec3f_GrSLType);
+    GR_STATIC_ASSERT(4 == kVec4f_GrSLType);
+    GR_STATIC_ASSERT(5 == kMat33f_GrSLType);
+    GR_STATIC_ASSERT(6 == kMat44f_GrSLType);
+    GR_STATIC_ASSERT(7 == kSampler2D_GrSLType);
+    GR_STATIC_ASSERT(8 == kSamplerExternal_GrSLType);
+    GR_STATIC_ASSERT(9 == kGrSLTypeCount);
+}
+
 //////////////////////////////////////////////////////////////////////////////
 
 /**