Implement GetFragDataLocation, often used by applications with MRT shaders in GLSL ES version 300.

TRAC #22704

Signed-off-by: Geoff Lang
Signed-off-by: Nicolas Capens
Authored-by: Jamie Madill
diff --git a/src/libGLESv2/ProgramBinary.h b/src/libGLESv2/ProgramBinary.h
index 33fd9c3..a29cf93 100644
--- a/src/libGLESv2/ProgramBinary.h
+++ b/src/libGLESv2/ProgramBinary.h
@@ -132,6 +132,8 @@
     GLuint getActiveUniformBlockMaxLength() const;
     UniformBlock *getUniformBlockByIndex(GLuint blockIndex);
 
+    GLint getFragDataLocation(const char *name) const;
+
     void validate(InfoLog &infoLog);
     bool validateSamplers(InfoLog *infoLog);
     bool isValidated() const;