Change shader_compile functions, sample => sampleTexture, texture => textureSampler. (#921)
Change shader_compile functions, sample => sampleTexture, texture => textureSampler. (#921)

This fixes a syntax error in glsl 4.1.
tensorflow/tfjs,tensorflow/tfjs,tensorflow/tfjs,tensorflow/tfjs,tensorflow/tfjs-core,tensorflow/tfjs-core,tensorflow/tfjs-core,tensorflow/tfjs-core,tensorflow/tfjs-core,tensorflow/tfjs,tensorflow/tfjs-core,tensorflow/tfjs,tensorflow/tfjs,tensorflow/tfjs,tensorflow/tfjs