Implement buffer{Sub}Data overloads with sub source.

third_party/WebKit/Source/modules/webgl/WebGL2RenderingContextBase.h

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef WebGL2RenderingContextBase_h
 #define WebGL2RenderingContextBase_h
 
 #include "modules/webgl/WebGLExtension.h"
 #include "modules/webgl/WebGLRenderingContextBase.h"
 #include <memory>
@@ skipping 10 matching lines @@
 class WebGLSync;
 class WebGLTransformFeedback;
 class WebGLUniformLocation;
 class WebGLVertexArrayObject;
 
 class WebGL2RenderingContextBase : public WebGLRenderingContextBase {
 public:
     ~WebGL2RenderingContextBase() override;
 
     /* Buffer objects */
+    void bufferData(GLenum, DOMArrayBufferView*, GLenum, GLuint, GLuint);
+    void bufferSubData(GLenum, GLintptr, DOMArrayBufferView*, GLuint, GLuint);
+    // Have to re-declare/re-define the following buffer{Sub}Data functions from base class.
+    // This is because the above buffer{Sub}Data() hides the name from base class.
+    void bufferData(GLenum target, long long size, GLenum usage);
+    void bufferData(GLenum target, DOMArrayBuffer* data, GLenum usage);
+    void bufferData(GLenum target, DOMArrayBufferView* data, GLenum usage);
+    void bufferSubData(GLenum target, long long offset, DOMArrayBuffer* data);
+    void bufferSubData(GLenum target, long long offset, const FlexibleArrayBufferView& data);
+
     void copyBufferSubData(GLenum, GLenum, long long, long long, long long);
-    void getBufferSubData(GLenum target, long long offset, DOMArrayBuffer* returnedData);
+    void getBufferSubData(GLenum, long long, DOMArrayBufferView*, GLuint, GLuint);
+    // TODO(zmo): Obsolete, remove after WebGL2 conformance tests are updated.
+    void getBufferSubData(GLenum, long long, DOMArrayBuffer*);
 
     /* Framebuffer objects */
     bool validateTexFuncLayer(const char*, GLenum texTarget, GLint layer);
     void blitFramebuffer(GLint, GLint, GLint, GLint, GLint, GLint, GLint, GLint, GLbitfield, GLenum);
     void framebufferTextureLayer(ScriptState*, GLenum, GLenum, WebGLTexture*, GLint, GLint);
     ScriptValue getInternalformatParameter(ScriptState*, GLenum, GLenum, GLenum);
     void invalidateFramebuffer(GLenum, const Vector<GLenum>&);
     void invalidateSubFramebuffer(GLenum, const Vector<GLenum>&, GLint, GLint, GLsizei, GLsizei);
     void readBuffer(GLenum);
 
@@ skipping 273 matching lines @@
     ScopedPersistent<v8::Array> m_queryWrappers;
 };
 
 DEFINE_TYPE_CASTS(WebGL2RenderingContextBase, CanvasRenderingContext, context,
     context->is3d() && WebGLRenderingContextBase::getWebGLVersion(context) >= 2,
     context.is3d() && WebGLRenderingContextBase::getWebGLVersion(&context) >= 2);
 
 } // namespace blink
 
 #endif