Implement offscreenCanvas.getContext('webgl') on a worker thread

third_party/WebKit/LayoutTests/webexposed/global-interface-listing-shared-worker-expected.txt

Index: third_party/WebKit/LayoutTests/webexposed/global-interface-listing-shared-worker-expected.txt
diff --git a/third_party/WebKit/LayoutTests/webexposed/global-interface-listing-shared-worker-expected.txt b/third_party/WebKit/LayoutTests/webexposed/global-interface-listing-shared-worker-expected.txt
index c3baeac7e6071e02ba0d1d5585644c19a37d3a74..53a783c66d9140ca1a1b1469add5d37322e9ce32 100644
--- a/third_party/WebKit/LayoutTests/webexposed/global-interface-listing-shared-worker-expected.txt
+++ b/third_party/WebKit/LayoutTests/webexposed/global-interface-listing-shared-worker-expected.txt
@@ -733,6 +733,445 @@ Starting worker: resources/global-interface-listing.js
 [Worker]     method set
 [Worker]     method toString
 [Worker]     method values
+[Worker] interface WebGLRenderingContext
+[Worker]     attribute @@toStringTag
+[Worker]     attribute ACTIVE_ATTRIBUTES
+[Worker]     attribute ACTIVE_TEXTURE
+[Worker]     attribute ACTIVE_UNIFORMS
+[Worker]     attribute ALIASED_LINE_WIDTH_RANGE
+[Worker]     attribute ALIASED_POINT_SIZE_RANGE
+[Worker]     attribute ALPHA
+[Worker]     attribute ALPHA_BITS
+[Worker]     attribute ALWAYS
+[Worker]     attribute ARRAY_BUFFER
+[Worker]     attribute ARRAY_BUFFER_BINDING
+[Worker]     attribute ATTACHED_SHADERS
+[Worker]     attribute BACK
+[Worker]     attribute BLEND
+[Worker]     attribute BLEND_COLOR
+[Worker]     attribute BLEND_DST_ALPHA
+[Worker]     attribute BLEND_DST_RGB
+[Worker]     attribute BLEND_EQUATION
+[Worker]     attribute BLEND_EQUATION_ALPHA
+[Worker]     attribute BLEND_EQUATION_RGB
+[Worker]     attribute BLEND_SRC_ALPHA
+[Worker]     attribute BLEND_SRC_RGB
+[Worker]     attribute BLUE_BITS
+[Worker]     attribute BOOL
+[Worker]     attribute BOOL_VEC2
+[Worker]     attribute BOOL_VEC3
+[Worker]     attribute BOOL_VEC4
+[Worker]     attribute BROWSER_DEFAULT_WEBGL
+[Worker]     attribute BUFFER_SIZE
+[Worker]     attribute BUFFER_USAGE
+[Worker]     attribute BYTE
+[Worker]     attribute CCW
+[Worker]     attribute CLAMP_TO_EDGE
+[Worker]     attribute COLOR_ATTACHMENT0
+[Worker]     attribute COLOR_BUFFER_BIT
+[Worker]     attribute COLOR_CLEAR_VALUE
+[Worker]     attribute COLOR_WRITEMASK
+[Worker]     attribute COMPILE_STATUS
+[Worker]     attribute COMPRESSED_TEXTURE_FORMATS
+[Worker]     attribute CONSTANT_ALPHA
+[Worker]     attribute CONSTANT_COLOR
+[Worker]     attribute CONTEXT_LOST_WEBGL
+[Worker]     attribute CULL_FACE
+[Worker]     attribute CULL_FACE_MODE
+[Worker]     attribute CURRENT_PROGRAM
+[Worker]     attribute CURRENT_VERTEX_ATTRIB
+[Worker]     attribute CW
+[Worker]     attribute DECR
+[Worker]     attribute DECR_WRAP
+[Worker]     attribute DELETE_STATUS
+[Worker]     attribute DEPTH_ATTACHMENT
+[Worker]     attribute DEPTH_BITS
+[Worker]     attribute DEPTH_BUFFER_BIT
+[Worker]     attribute DEPTH_CLEAR_VALUE
+[Worker]     attribute DEPTH_COMPONENT
+[Worker]     attribute DEPTH_COMPONENT16
+[Worker]     attribute DEPTH_FUNC
+[Worker]     attribute DEPTH_RANGE
+[Worker]     attribute DEPTH_STENCIL
+[Worker]     attribute DEPTH_STENCIL_ATTACHMENT
+[Worker]     attribute DEPTH_TEST
+[Worker]     attribute DEPTH_WRITEMASK
+[Worker]     attribute DITHER
+[Worker]     attribute DONT_CARE
+[Worker]     attribute DST_ALPHA
+[Worker]     attribute DST_COLOR
+[Worker]     attribute DYNAMIC_DRAW
+[Worker]     attribute ELEMENT_ARRAY_BUFFER
+[Worker]     attribute ELEMENT_ARRAY_BUFFER_BINDING
+[Worker]     attribute EQUAL
+[Worker]     attribute FASTEST
+[Worker]     attribute FLOAT
+[Worker]     attribute FLOAT_MAT2
+[Worker]     attribute FLOAT_MAT3
+[Worker]     attribute FLOAT_MAT4
+[Worker]     attribute FLOAT_VEC2
+[Worker]     attribute FLOAT_VEC3
+[Worker]     attribute FLOAT_VEC4
+[Worker]     attribute FRAGMENT_SHADER
+[Worker]     attribute FRAMEBUFFER
+[Worker]     attribute FRAMEBUFFER_ATTACHMENT_OBJECT_NAME
+[Worker]     attribute FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE
+[Worker]     attribute FRAMEBUFFER_ATTACHMENT_TEXTURE_CUBE_MAP_FACE
+[Worker]     attribute FRAMEBUFFER_ATTACHMENT_TEXTURE_LEVEL
+[Worker]     attribute FRAMEBUFFER_BINDING
+[Worker]     attribute FRAMEBUFFER_COMPLETE
+[Worker]     attribute FRAMEBUFFER_INCOMPLETE_ATTACHMENT
+[Worker]     attribute FRAMEBUFFER_INCOMPLETE_DIMENSIONS
+[Worker]     attribute FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT
+[Worker]     attribute FRAMEBUFFER_UNSUPPORTED
+[Worker]     attribute FRONT
+[Worker]     attribute FRONT_AND_BACK
+[Worker]     attribute FRONT_FACE
+[Worker]     attribute FUNC_ADD
+[Worker]     attribute FUNC_REVERSE_SUBTRACT
+[Worker]     attribute FUNC_SUBTRACT
+[Worker]     attribute GENERATE_MIPMAP_HINT
+[Worker]     attribute GEQUAL
+[Worker]     attribute GREATER
+[Worker]     attribute GREEN_BITS
+[Worker]     attribute HIGH_FLOAT
+[Worker]     attribute HIGH_INT
+[Worker]     attribute IMPLEMENTATION_COLOR_READ_FORMAT
+[Worker]     attribute IMPLEMENTATION_COLOR_READ_TYPE
+[Worker]     attribute INCR
+[Worker]     attribute INCR_WRAP
+[Worker]     attribute INT
+[Worker]     attribute INT_VEC2
+[Worker]     attribute INT_VEC3
+[Worker]     attribute INT_VEC4
+[Worker]     attribute INVALID_ENUM
+[Worker]     attribute INVALID_FRAMEBUFFER_OPERATION
+[Worker]     attribute INVALID_OPERATION
+[Worker]     attribute INVALID_VALUE
+[Worker]     attribute INVERT
+[Worker]     attribute KEEP
+[Worker]     attribute LEQUAL
+[Worker]     attribute LESS
+[Worker]     attribute LINEAR
+[Worker]     attribute LINEAR_MIPMAP_LINEAR
+[Worker]     attribute LINEAR_MIPMAP_NEAREST
+[Worker]     attribute LINES
+[Worker]     attribute LINE_LOOP
+[Worker]     attribute LINE_STRIP
+[Worker]     attribute LINE_WIDTH
+[Worker]     attribute LINK_STATUS
+[Worker]     attribute LOW_FLOAT
+[Worker]     attribute LOW_INT
+[Worker]     attribute LUMINANCE
+[Worker]     attribute LUMINANCE_ALPHA
+[Worker]     attribute MAX_COMBINED_TEXTURE_IMAGE_UNITS
+[Worker]     attribute MAX_CUBE_MAP_TEXTURE_SIZE
+[Worker]     attribute MAX_FRAGMENT_UNIFORM_VECTORS
+[Worker]     attribute MAX_RENDERBUFFER_SIZE
+[Worker]     attribute MAX_TEXTURE_IMAGE_UNITS
+[Worker]     attribute MAX_TEXTURE_SIZE
+[Worker]     attribute MAX_VARYING_VECTORS
+[Worker]     attribute MAX_VERTEX_ATTRIBS
+[Worker]     attribute MAX_VERTEX_TEXTURE_IMAGE_UNITS
+[Worker]     attribute MAX_VERTEX_UNIFORM_VECTORS
+[Worker]     attribute MAX_VIEWPORT_DIMS
+[Worker]     attribute MEDIUM_FLOAT
+[Worker]     attribute MEDIUM_INT
+[Worker]     attribute MIRRORED_REPEAT
+[Worker]     attribute NEAREST
+[Worker]     attribute NEAREST_MIPMAP_LINEAR
+[Worker]     attribute NEAREST_MIPMAP_NEAREST
+[Worker]     attribute NEVER
+[Worker]     attribute NICEST
+[Worker]     attribute NONE
+[Worker]     attribute NOTEQUAL
+[Worker]     attribute NO_ERROR
+[Worker]     attribute ONE
+[Worker]     attribute ONE_MINUS_CONSTANT_ALPHA
+[Worker]     attribute ONE_MINUS_CONSTANT_COLOR
+[Worker]     attribute ONE_MINUS_DST_ALPHA
+[Worker]     attribute ONE_MINUS_DST_COLOR
+[Worker]     attribute ONE_MINUS_SRC_ALPHA
+[Worker]     attribute ONE_MINUS_SRC_COLOR
+[Worker]     attribute OUT_OF_MEMORY
+[Worker]     attribute PACK_ALIGNMENT
+[Worker]     attribute POINTS
+[Worker]     attribute POLYGON_OFFSET_FACTOR
+[Worker]     attribute POLYGON_OFFSET_FILL
+[Worker]     attribute POLYGON_OFFSET_UNITS
+[Worker]     attribute RED_BITS
+[Worker]     attribute RENDERBUFFER
+[Worker]     attribute RENDERBUFFER_ALPHA_SIZE
+[Worker]     attribute RENDERBUFFER_BINDING
+[Worker]     attribute RENDERBUFFER_BLUE_SIZE
+[Worker]     attribute RENDERBUFFER_DEPTH_SIZE
+[Worker]     attribute RENDERBUFFER_GREEN_SIZE
+[Worker]     attribute RENDERBUFFER_HEIGHT
+[Worker]     attribute RENDERBUFFER_INTERNAL_FORMAT
+[Worker]     attribute RENDERBUFFER_RED_SIZE
+[Worker]     attribute RENDERBUFFER_STENCIL_SIZE
+[Worker]     attribute RENDERBUFFER_WIDTH
+[Worker]     attribute RENDERER
+[Worker]     attribute REPEAT
+[Worker]     attribute REPLACE
+[Worker]     attribute RGB
+[Worker]     attribute RGB565
+[Worker]     attribute RGB5_A1
+[Worker]     attribute RGBA
+[Worker]     attribute RGBA4
+[Worker]     attribute SAMPLER_2D
+[Worker]     attribute SAMPLER_CUBE
+[Worker]     attribute SAMPLES
+[Worker]     attribute SAMPLE_ALPHA_TO_COVERAGE
+[Worker]     attribute SAMPLE_BUFFERS
+[Worker]     attribute SAMPLE_COVERAGE
+[Worker]     attribute SAMPLE_COVERAGE_INVERT
+[Worker]     attribute SAMPLE_COVERAGE_VALUE
+[Worker]     attribute SCISSOR_BOX
+[Worker]     attribute SCISSOR_TEST
+[Worker]     attribute SHADER_TYPE
+[Worker]     attribute SHADING_LANGUAGE_VERSION
+[Worker]     attribute SHORT
+[Worker]     attribute SRC_ALPHA
+[Worker]     attribute SRC_ALPHA_SATURATE
+[Worker]     attribute SRC_COLOR
+[Worker]     attribute STATIC_DRAW
+[Worker]     attribute STENCIL_ATTACHMENT
+[Worker]     attribute STENCIL_BACK_FAIL
+[Worker]     attribute STENCIL_BACK_FUNC
+[Worker]     attribute STENCIL_BACK_PASS_DEPTH_FAIL
+[Worker]     attribute STENCIL_BACK_PASS_DEPTH_PASS
+[Worker]     attribute STENCIL_BACK_REF
+[Worker]     attribute STENCIL_BACK_VALUE_MASK
+[Worker]     attribute STENCIL_BACK_WRITEMASK
+[Worker]     attribute STENCIL_BITS
+[Worker]     attribute STENCIL_BUFFER_BIT
+[Worker]     attribute STENCIL_CLEAR_VALUE
+[Worker]     attribute STENCIL_FAIL
+[Worker]     attribute STENCIL_FUNC
+[Worker]     attribute STENCIL_INDEX
+[Worker]     attribute STENCIL_INDEX8
+[Worker]     attribute STENCIL_PASS_DEPTH_FAIL
+[Worker]     attribute STENCIL_PASS_DEPTH_PASS
+[Worker]     attribute STENCIL_REF
+[Worker]     attribute STENCIL_TEST
+[Worker]     attribute STENCIL_VALUE_MASK
+[Worker]     attribute STENCIL_WRITEMASK
+[Worker]     attribute STREAM_DRAW
+[Worker]     attribute SUBPIXEL_BITS
+[Worker]     attribute TEXTURE
+[Worker]     attribute TEXTURE0
+[Worker]     attribute TEXTURE1
+[Worker]     attribute TEXTURE10
+[Worker]     attribute TEXTURE11
+[Worker]     attribute TEXTURE12
+[Worker]     attribute TEXTURE13
+[Worker]     attribute TEXTURE14
+[Worker]     attribute TEXTURE15
+[Worker]     attribute TEXTURE16
+[Worker]     attribute TEXTURE17
+[Worker]     attribute TEXTURE18
+[Worker]     attribute TEXTURE19
+[Worker]     attribute TEXTURE2
+[Worker]     attribute TEXTURE20
+[Worker]     attribute TEXTURE21
+[Worker]     attribute TEXTURE22
+[Worker]     attribute TEXTURE23
+[Worker]     attribute TEXTURE24
+[Worker]     attribute TEXTURE25
+[Worker]     attribute TEXTURE26
+[Worker]     attribute TEXTURE27
+[Worker]     attribute TEXTURE28
+[Worker]     attribute TEXTURE29
+[Worker]     attribute TEXTURE3
+[Worker]     attribute TEXTURE30
+[Worker]     attribute TEXTURE31
+[Worker]     attribute TEXTURE4
+[Worker]     attribute TEXTURE5
+[Worker]     attribute TEXTURE6
+[Worker]     attribute TEXTURE7
+[Worker]     attribute TEXTURE8
+[Worker]     attribute TEXTURE9
+[Worker]     attribute TEXTURE_2D
+[Worker]     attribute TEXTURE_BINDING_2D
+[Worker]     attribute TEXTURE_BINDING_CUBE_MAP
+[Worker]     attribute TEXTURE_CUBE_MAP
+[Worker]     attribute TEXTURE_CUBE_MAP_NEGATIVE_X
+[Worker]     attribute TEXTURE_CUBE_MAP_NEGATIVE_Y
+[Worker]     attribute TEXTURE_CUBE_MAP_NEGATIVE_Z
+[Worker]     attribute TEXTURE_CUBE_MAP_POSITIVE_X
+[Worker]     attribute TEXTURE_CUBE_MAP_POSITIVE_Y
+[Worker]     attribute TEXTURE_CUBE_MAP_POSITIVE_Z
+[Worker]     attribute TEXTURE_MAG_FILTER
+[Worker]     attribute TEXTURE_MIN_FILTER
+[Worker]     attribute TEXTURE_WRAP_S
+[Worker]     attribute TEXTURE_WRAP_T
+[Worker]     attribute TRIANGLES
+[Worker]     attribute TRIANGLE_FAN
+[Worker]     attribute TRIANGLE_STRIP
+[Worker]     attribute UNPACK_ALIGNMENT
+[Worker]     attribute UNPACK_COLORSPACE_CONVERSION_WEBGL
+[Worker]     attribute UNPACK_FLIP_Y_WEBGL
+[Worker]     attribute UNPACK_PREMULTIPLY_ALPHA_WEBGL
+[Worker]     attribute UNSIGNED_BYTE
+[Worker]     attribute UNSIGNED_INT
+[Worker]     attribute UNSIGNED_SHORT
+[Worker]     attribute UNSIGNED_SHORT_4_4_4_4
+[Worker]     attribute UNSIGNED_SHORT_5_5_5_1
+[Worker]     attribute UNSIGNED_SHORT_5_6_5
+[Worker]     attribute VALIDATE_STATUS
+[Worker]     attribute VENDOR
+[Worker]     attribute VERSION
+[Worker]     attribute VERTEX_ATTRIB_ARRAY_BUFFER_BINDING
+[Worker]     attribute VERTEX_ATTRIB_ARRAY_ENABLED
+[Worker]     attribute VERTEX_ATTRIB_ARRAY_NORMALIZED
+[Worker]     attribute VERTEX_ATTRIB_ARRAY_POINTER
+[Worker]     attribute VERTEX_ATTRIB_ARRAY_SIZE
+[Worker]     attribute VERTEX_ATTRIB_ARRAY_STRIDE
+[Worker]     attribute VERTEX_ATTRIB_ARRAY_TYPE
+[Worker]     attribute VERTEX_SHADER
+[Worker]     attribute VIEWPORT
+[Worker]     attribute ZERO
+[Worker]     getter canvas
+[Worker]     getter drawingBufferHeight
+[Worker]     getter drawingBufferWidth
+[Worker]     method activeTexture
+[Worker]     method attachShader
+[Worker]     method bindAttribLocation
+[Worker]     method bindBuffer
+[Worker]     method bindFramebuffer
+[Worker]     method bindRenderbuffer
+[Worker]     method bindTexture
+[Worker]     method blendColor
+[Worker]     method blendEquation
+[Worker]     method blendEquationSeparate
+[Worker]     method blendFunc
+[Worker]     method blendFuncSeparate
+[Worker]     method bufferData
+[Worker]     method bufferSubData
+[Worker]     method checkFramebufferStatus
+[Worker]     method clear
+[Worker]     method clearColor
+[Worker]     method clearDepth
+[Worker]     method clearStencil
+[Worker]     method colorMask
+[Worker]     method compileShader
+[Worker]     method compressedTexImage2D
+[Worker]     method compressedTexSubImage2D
+[Worker]     method constructor
+[Worker]     method copyTexImage2D
+[Worker]     method copyTexSubImage2D
+[Worker]     method createBuffer
+[Worker]     method createFramebuffer
+[Worker]     method createProgram
+[Worker]     method createRenderbuffer
+[Worker]     method createShader
+[Worker]     method createTexture
+[Worker]     method cullFace
+[Worker]     method deleteBuffer
+[Worker]     method deleteFramebuffer
+[Worker]     method deleteProgram
+[Worker]     method deleteRenderbuffer
+[Worker]     method deleteShader
+[Worker]     method deleteTexture
+[Worker]     method depthFunc
+[Worker]     method depthMask
+[Worker]     method depthRange
+[Worker]     method detachShader
+[Worker]     method disable
+[Worker]     method disableVertexAttribArray
+[Worker]     method drawArrays
+[Worker]     method drawElements
+[Worker]     method enable
+[Worker]     method enableVertexAttribArray
+[Worker]     method finish
+[Worker]     method flush
+[Worker]     method framebufferRenderbuffer
+[Worker]     method framebufferTexture2D
+[Worker]     method frontFace
+[Worker]     method generateMipmap
+[Worker]     method getActiveAttrib
+[Worker]     method getActiveUniform
+[Worker]     method getAttachedShaders
+[Worker]     method getAttribLocation
+[Worker]     method getBufferParameter
+[Worker]     method getContextAttributes
+[Worker]     method getError
+[Worker]     method getExtension
+[Worker]     method getFramebufferAttachmentParameter
+[Worker]     method getParameter
+[Worker]     method getProgramInfoLog
+[Worker]     method getProgramParameter
+[Worker]     method getRenderbufferParameter
+[Worker]     method getShaderInfoLog
+[Worker]     method getShaderParameter
+[Worker]     method getShaderPrecisionFormat
+[Worker]     method getShaderSource
+[Worker]     method getSupportedExtensions
+[Worker]     method getTexParameter
+[Worker]     method getUniform
+[Worker]     method getUniformLocation
+[Worker]     method getVertexAttrib
+[Worker]     method getVertexAttribOffset
+[Worker]     method hint
+[Worker]     method isBuffer
+[Worker]     method isContextLost
+[Worker]     method isEnabled
+[Worker]     method isFramebuffer
+[Worker]     method isProgram
+[Worker]     method isRenderbuffer
+[Worker]     method isShader
+[Worker]     method isTexture
+[Worker]     method lineWidth
+[Worker]     method linkProgram
+[Worker]     method pixelStorei
+[Worker]     method polygonOffset
+[Worker]     method readPixels
+[Worker]     method renderbufferStorage
+[Worker]     method sampleCoverage
+[Worker]     method scissor
+[Worker]     method shaderSource
+[Worker]     method stencilFunc
+[Worker]     method stencilFuncSeparate
+[Worker]     method stencilMask
+[Worker]     method stencilMaskSeparate
+[Worker]     method stencilOp
+[Worker]     method stencilOpSeparate
+[Worker]     method texImage2D
+[Worker]     method texParameterf
+[Worker]     method texParameteri
+[Worker]     method texSubImage2D
+[Worker]     method uniform1f
+[Worker]     method uniform1fv
+[Worker]     method uniform1i
+[Worker]     method uniform1iv
+[Worker]     method uniform2f
+[Worker]     method uniform2fv
+[Worker]     method uniform2i
+[Worker]     method uniform2iv
+[Worker]     method uniform3f
+[Worker]     method uniform3fv
+[Worker]     method uniform3i
+[Worker]     method uniform3iv
+[Worker]     method uniform4f
+[Worker]     method uniform4fv
+[Worker]     method uniform4i
+[Worker]     method uniform4iv
+[Worker]     method uniformMatrix2fv
+[Worker]     method uniformMatrix3fv
+[Worker]     method uniformMatrix4fv
+[Worker]     method useProgram
+[Worker]     method validateProgram
+[Worker]     method vertexAttrib1f
+[Worker]     method vertexAttrib1fv
+[Worker]     method vertexAttrib2f
+[Worker]     method vertexAttrib2fv
+[Worker]     method vertexAttrib3f
+[Worker]     method vertexAttrib3fv
+[Worker]     method vertexAttrib4f
+[Worker]     method vertexAttrib4fv
+[Worker]     method vertexAttribPointer
+[Worker]     method viewport
 [Worker] interface WebSocket : EventTarget
 [Worker]     attribute @@toStringTag
 [Worker]     attribute CLOSED