media: replace LUMINANCE_F16 by RG_88 for 9/10-bit h264 videos

cc/output/shader.h

Index: cc/output/shader.h
diff --git a/cc/output/shader.h b/cc/output/shader.h
index 21b4a70de5aaac404dc18061f6483967841dddf7..d047c82d473f0cb0041b7b6aa3d59ba8d4e8ed13 100644
--- a/cc/output/shader.h
+++ b/cc/output/shader.h
@@ -763,11 +763,21 @@ class FragmentShaderRGBATexAlphaMaskColorMatrix : public FragmentTexBlendMode {
 
 class FragmentShaderYUVVideo : public FragmentTexBlendMode {
  public:
+  enum HighbitTexture {
+    HIGHBIT_Y8 = 0,  // either RED_8 or LUMINANCE_8
+    HIGHBIT_LUMINANCE_F16 = 1,
+    HIGHBIT_RG88 = 2,
+    LAST_HIGHBIT_TEXTURE = HIGHBIT_RG88
+  };
+
   FragmentShaderYUVVideo();
   std::string GetShaderString(
       TexCoordPrecision precision, SamplerType sampler) const;
 
-  void SetFeatures(bool use_alpha_texture, bool use_nv12, bool use_color_lut);
+  void SetFeatures(bool use_alpha_texture,
+                   bool use_nv12,
+                   bool use_color_lut,
+                   HighbitTexture highbit_texture);
 
   void Init(gpu::gles2::GLES2Interface* context,
             unsigned program,
@@ -781,8 +791,13 @@ class FragmentShaderYUVVideo : public FragmentTexBlendMode {
   int alpha_location() const { return alpha_location_; }
   int yuv_matrix_location() const { return yuv_matrix_location_; }
   int yuv_adj_location() const { return yuv_adj_location_; }
+  int ya_size_location() const { return ya_size_location_; }
+  int uv_size_location() const { return uv_size_location_; }
   int ya_clamp_rect_location() const { return ya_clamp_rect_location_; }
   int uv_clamp_rect_location() const { return uv_clamp_rect_location_; }
+  int inverse_max_input_value_location() const {
+    return inverse_max_input_value_location_;
+  }
   int resource_multiplier_location() const {
     return resource_multiplier_location_;
   }
@@ -792,6 +807,7 @@ class FragmentShaderYUVVideo : public FragmentTexBlendMode {
   bool use_alpha_texture_;
   bool use_nv12_;
   bool use_color_lut_;
+  HighbitTexture highbit_texture_ = HIGHBIT_Y8;
 
   int y_texture_location_;
   int u_texture_location_;
@@ -802,6 +818,9 @@ class FragmentShaderYUVVideo : public FragmentTexBlendMode {
   int alpha_location_;
   int yuv_matrix_location_;
   int yuv_adj_location_;
+  int inverse_max_input_value_location_;
+  int ya_size_location_;
+  int uv_size_location_;
   int ya_clamp_rect_location_;
   int uv_clamp_rect_location_;
   int resource_multiplier_location_;