The great shader refactor: Merge YUV shader class

cc/output/program_binding.cc

Index: cc/output/program_binding.cc
diff --git a/cc/output/program_binding.cc b/cc/output/program_binding.cc
index feccac2a5a4427305ee2c74a646bf426cf0cc4f5..70ed57090d3ef04f291f2766ffc28dfee283745d 100644
--- a/cc/output/program_binding.cc
+++ b/cc/output/program_binding.cc
@@ -26,7 +26,9 @@ bool ProgramKey::operator==(const ProgramKey& other) const {
          has_background_color_ == other.has_background_color_ &&
          mask_mode_ == other.mask_mode_ &&
          mask_for_background_ == other.mask_for_background_ &&
-         has_color_matrix_ == other.has_color_matrix_;
+         has_color_matrix_ == other.has_color_matrix_ &&
+         use_alpha_texture_ == other.use_alpha_texture_ &&
+         use_nv12_ == other.use_nv12_ && use_color_lut_ == other.use_color_lut_;
 }
 
 // static
@@ -103,6 +105,22 @@ ProgramKey ProgramKey::VideoStream(TexCoordPrecision precision) {
   return result;
 }
 
+// static
+ProgramKey ProgramKey::YUVVideo(TexCoordPrecision precision,
+                                SamplerType sampler,
+                                bool use_alpha_texture,
+                                bool use_nv12,
+                                bool use_color_lut) {
+  ProgramKey result;
+  result.type_ = PROGRAM_TYPE_YUV_VIDEO;
+  result.precision_ = precision;
+  result.sampler_ = sampler;
+  result.use_alpha_texture_ = use_alpha_texture;
+  result.use_nv12_ = use_nv12;
+  result.use_color_lut_ = use_color_lut;
+  return result;
+}
+
 ProgramBindingBase::ProgramBindingBase()
     : program_(0),
       vertex_shader_id_(0),