Merge fix for 552999 to m48(Always use high precision on NDS transform)

src/gpu/glsl/GrGLSLVertexShaderBuilder.cpp

Index: src/gpu/glsl/GrGLSLVertexShaderBuilder.cpp
diff --git a/src/gpu/glsl/GrGLSLVertexShaderBuilder.cpp b/src/gpu/glsl/GrGLSLVertexShaderBuilder.cpp
index 1f68d0e7b9f5b06ea001ef9cc866df5f5906b265..8eac876d0d47ab9f94a39bf5fcf43894082090ff 100644
--- a/src/gpu/glsl/GrGLSLVertexShaderBuilder.cpp
+++ b/src/gpu/glsl/GrGLSLVertexShaderBuilder.cpp
@@ -33,15 +33,10 @@ void GrGLSLVertexBuilder::emitAttributes(const GrGeometryProcessor& gp) {
 void GrGLSLVertexBuilder::transformToNormalizedDeviceSpace(const GrShaderVar& posVar) {
     SkASSERT(!fRtAdjustName);
 
-    GrSLPrecision precision = kDefault_GrSLPrecision;
-    if (fProgramBuilder->glslCaps()->forceHighPrecisionNDSTransform()) {
-        precision = kHigh_GrSLPrecision;
-    }
-
     // setup RT Uniform
     fProgramBuilder->fUniformHandles.fRTAdjustmentUni =
             fProgramBuilder->addUniform(GrGLSLProgramBuilder::kVertex_Visibility,
-                                        kVec4f_GrSLType, precision,
+                                        kVec4f_GrSLType, kHigh_GrSLPrecision,
                                         fProgramBuilder->rtAdjustment(),
                                         &fRtAdjustName);
     if (this->getProgramBuilder()->desc().header().fSnapVerticesToPixelCenters) {