Add layout qualifiers to GrGLShaderBuilder

src/gpu/gl/builders/GrGLVertexShaderBuilder.cpp

Index: src/gpu/gl/builders/GrGLVertexShaderBuilder.cpp
diff --git a/src/gpu/gl/builders/GrGLVertexShaderBuilder.cpp b/src/gpu/gl/builders/GrGLVertexShaderBuilder.cpp
index 20e9f0861ae9bae7077fe0eb0a3140554ddf46e8..f484497954992e47e71f6e269b39e41d6727eb90 100644
--- a/src/gpu/gl/builders/GrGLVertexShaderBuilder.cpp
+++ b/src/gpu/gl/builders/GrGLVertexShaderBuilder.cpp
@@ -81,6 +81,7 @@ void GrGLVertexBuilder::bindVertexAttributes(GrGLuint programID) {
 bool
 GrGLVertexBuilder::compileAndAttachShaders(GrGLuint programId, SkTDArray<GrGLuint>* shaderIds) {
     this->versionDecl() = GrGetGLSLVersionDecl(fProgramBuilder->ctxInfo());
+    this->compileAndAppendLayoutQualifiers();
     fProgramBuilder->appendUniformDecls(GrGLProgramBuilder::kVertex_Visibility, &this->uniforms());
     this->appendDecls(fInputs, &this->inputs());
     this->appendDecls(fOutputs, &this->outputs());