Reland of Upgrade PixelStorei to ES3/WebGL2.

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 258 matching lines @@
     bool isContextLost() const override;
     GLboolean isEnabled(GLenum cap);
     GLboolean isFramebuffer(WebGLFramebuffer*);
     GLboolean isProgram(WebGLProgram*);
     GLboolean isRenderbuffer(WebGLRenderbuffer*);
     GLboolean isShader(WebGLShader*);
     GLboolean isTexture(WebGLTexture*);
 
     void lineWidth(GLfloat);
     void linkProgram(WebGLProgram*);
-    void pixelStorei(GLenum pname, GLint param);
+    virtual void pixelStorei(GLenum pname, GLint param);
     void polygonOffset(GLfloat factor, GLfloat units);
     virtual void readPixels(GLint x, GLint y, GLsizei width, GLsizei height, GLenum format, GLenum type, DOMArrayBufferView* pixels);
     void renderbufferStorage(GLenum target, GLenum internalformat, GLsizei width, GLsizei height);
     void sampleCoverage(GLfloat value, GLboolean invert);
     void scissor(GLint x, GLint y, GLsizei width, GLsizei height);
     void shaderSource(WebGLShader*, const String&);
     void stencilFunc(GLenum func, GLint ref, GLuint mask);
     void stencilFuncSeparate(GLenum face, GLenum func, GLint ref, GLuint mask);
     void stencilMask(GLuint);
     void stencilMaskSeparate(GLenum face, GLuint mask);
@@ skipping 190 matching lines @@
 
     // Check if each enabled vertex attribute is bound to a buffer.
     bool validateRenderingState(const char*);
 
     bool validateWebGLObject(const char*, WebGLObject*);
 
     // Adds a compressed texture format.
     void addCompressedTextureFormat(GLenum);
     void removeAllCompressedTextureFormats();
 
+    // Set UNPACK_ALIGNMENT to 1, all other parameters to 0.
+    virtual void resetUnpackParameters();
+    // Restore the client unpack parameters.
+    virtual void restoreUnpackParameters();
+
     PassRefPtr<Image> drawImageIntoBuffer(PassRefPtr<Image>, int width, int height, const char* functionName);
 
     PassRefPtr<Image> videoFrameToImage(HTMLVideoElement*);
 
     WebGLRenderbuffer* ensureEmulatedStencilBuffer(GLenum target, WebGLRenderbuffer*);
 
     // Structure for rendering to a DrawingBuffer, instead of directly
     // to the back-buffer of m_context.
     RefPtr<DrawingBuffer> m_drawingBuffer;
     DrawingBuffer* drawingBuffer() const;
@@ skipping 632 matching lines @@
     static WebGLRenderingContextBase* oldestEvictedContext();
 };
 
 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