Reland of Upgrade PixelStorei to ES3/WebGL2.

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"
 
@@ skipping 157 matching lines @@
     /* Reading */
     void readPixels(GLint x, GLint y, GLsizei width, GLsizei height, GLenum format, GLenum type, long long offset);
 
     /* WebGLRenderingContextBase overrides */
     void initializeNewContext() override;
     void bindFramebuffer(ScriptState*, GLenum target, WebGLFramebuffer*) override;
     void deleteFramebuffer(WebGLFramebuffer*) override;
     ScriptValue getParameter(ScriptState*, GLenum pname) override;
     ScriptValue getTexParameter(ScriptState*, GLenum target, GLenum pname) override;
     ScriptValue getFramebufferAttachmentParameter(ScriptState*, GLenum target, GLenum attachment, GLenum pname) override;
+    void pixelStorei(GLenum pname, GLint param) override;
     void readPixels(GLint x, GLint y, GLsizei width, GLsizei height, GLenum format, GLenum type, DOMArrayBufferView* pixels) override;
     void restoreCurrentFramebuffer() override;
 
     EAGERLY_FINALIZE();
     DECLARE_VIRTUAL_TRACE();
 
 protected:
     WebGL2RenderingContextBase(HTMLCanvasElement*, PassOwnPtr<WebGraphicsContext3D>, const WebGLContextAttributes& requestedAttributes);
 
     // Helper function to validate target and the attachment combination for getFramebufferAttachmentParameters.
@@ skipping 39 matching lines @@
     WebGLFramebuffer* getFramebufferBinding(GLenum target) override;
     GLint getMaxTextureLevelForTarget(GLenum target) override;
     void renderbufferStorageImpl(GLenum target, GLsizei samples, GLenum internalformat, GLsizei width, GLsizei height, const char* functionName) override;
     GLenum boundFramebufferColorFormat() override;
 
     WebGLBuffer* validateBufferDataTarget(const char* functionName, GLenum target) override;
     bool validateBufferDataUsage(const char* functionName, GLenum usage) override;
 
     void removeBoundBuffer(WebGLBuffer*) override;
 
+    void resetUnpackParameters() override;
+    void restoreUnpackParameters() override;
+
     PersistentWillBeMember<WebGLFramebuffer> m_readFramebufferBinding;
     PersistentWillBeMember<WebGLTransformFeedback> m_transformFeedbackBinding;
     GLint m_maxArrayTextureLayers;
 
     std::set<GLenum> m_supportedInternalFormatsStorage;
     std::set<GLenum> m_compressedTextureFormatsETC2EAC;
 
     PersistentWillBeMember<WebGLBuffer> m_boundCopyReadBuffer;
     PersistentWillBeMember<WebGLBuffer> m_boundCopyWriteBuffer;
     PersistentWillBeMember<WebGLBuffer> m_boundPixelPackBuffer;
     PersistentWillBeMember<WebGLBuffer> m_boundPixelUnpackBuffer;
     PersistentWillBeMember<WebGLBuffer> m_boundTransformFeedbackBuffer;
     PersistentWillBeMember<WebGLBuffer> m_boundUniformBuffer;
 
     PersistentHeapVectorWillBeHeapVector<Member<WebGLBuffer>> m_boundIndexedTransformFeedbackBuffers;
     PersistentHeapVectorWillBeHeapVector<Member<WebGLBuffer>> m_boundIndexedUniformBuffers;
     size_t m_maxBoundUniformBufferIndex;
 
     PersistentWillBeMember<WebGLQuery> m_currentBooleanOcclusionQuery;
     PersistentWillBeMember<WebGLQuery> m_currentTransformFeedbackPrimitivesWrittenQuery;
     PersistentHeapVectorWillBeHeapVector<Member<WebGLSampler>> m_samplerUnits;
+
+    GLint m_packRowLength;
+    GLint m_packSkipPixels;
+    GLint m_packSkipRows;
+    GLint m_unpackRowLength;
+    GLint m_unpackImageHeight;
+    GLint m_unpackSkipPixels;
+    GLint m_unpackSkipRows;
+    GLint m_unpackSkipImages;
 };
 
 DEFINE_TYPE_CASTS(WebGL2RenderingContextBase, CanvasRenderingContext, context,
     context->is3d() && WebGLRenderingContextBase::getWebGLVersion(context) >= 2,
     context.is3d() && WebGLRenderingContextBase::getWebGLVersion(&context) >= 2);
 
 } // namespace blink
 
 #endif