Support line-continuation character in WebGL 2.0

third_party/WebKit/Source/modules/webgl/WebGLRenderingContextBase.h

 /*
  * Copyright (C) 2009 Apple Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 801 matching lines @@
     bool validateLocationLength(const char* functionName, const String&);
 
     // Helper function to check if size is non-negative.
     // Generate GL error and return false for negative inputs; otherwise, return true.
     bool validateSize(const char* functionName, GLint x, GLint y, GLint z = 0);
 
     // Helper function to check if all characters in the string belong to the
     // ASCII subset as defined in GLSL ES 1.0 spec section 3.1.
     bool validateString(const char* functionName, const String&);
 
+    // Helper function to check if all characters in the shader source belong to the ASCII
+    // subset as defined in GLSL ES 1.0 spec section 3.1 Character Set for WebGL 1.0 and
+    // in GLSL ES 3.00 spec section 3.1 Character Set for WebGL 2.0.
+    bool validateShaderSource(const String&);
+
     // Helper function to check texture binding target and texture bound to the target.
     // Generate GL errors and return 0 if target is invalid or texture bound is
     // null.  Otherwise, return the texture bound to the target.
     WebGLTexture* validateTextureBinding(const char* functionName, GLenum target);
 
     // Wrapper function for validateTexture2D(3D)Binding, used in texImageHelper functions.
     virtual WebGLTexture* validateTexImageBinding(const char*, TexImageFunctionID, GLenum);
 
     // Helper function to check texture 2D target and texture bound to the target.
     // Generate GL errors and return 0 if target is invalid or texture bound is
@@ skipping 276 matching lines @@
     void texImageBitmapByGPU(ImageBitmap*, GLuint, GLenum, GLenum, GLint, bool);
 };
 
 DEFINE_TYPE_CASTS(WebGLRenderingContextBase, CanvasRenderingContext, context, context->is3d(), context.is3d());
 
 } // namespace blink
 
 WTF_ALLOW_MOVE_INIT_AND_COMPARE_WITH_MEM_FUNCTIONS(blink::WebGLRenderingContextBase::TextureUnitState);
 
 #endif // WebGLRenderingContextBase_h