Revert "Making all DOM types abstract and removing superfluous Dartium constructors."

sdk/lib/web_gl/dartium/web_gl_dartium.dart

Index: sdk/lib/web_gl/dartium/web_gl_dartium.dart
diff --git a/sdk/lib/web_gl/dartium/web_gl_dartium.dart b/sdk/lib/web_gl/dartium/web_gl_dartium.dart
index 076acddb6523ea0550ba845360fb1c37c5fd7dd1..a1e5550c3a107f65173b888806f0484bb9550239 100644
--- a/sdk/lib/web_gl/dartium/web_gl_dartium.dart
+++ b/sdk/lib/web_gl/dartium/web_gl_dartium.dart
@@ -326,8 +326,7 @@ const int ZERO = RenderingContext.ZERO;
 @DomName('WebGLActiveInfo')
 @Unstable
 class ActiveInfo extends NativeFieldWrapperClass1 {
-  // To suppress missing implicit constructor warnings.
-  factory ActiveInfo._() { throw new UnsupportedError("Not supported"); }
+  ActiveInfo.internal();
 
   @DomName('WebGLActiveInfo.name')
   @DocsEditable
@@ -353,8 +352,7 @@ class ActiveInfo extends NativeFieldWrapperClass1 {
 @DomName('WebGLBuffer')
 @Unstable
 class Buffer extends NativeFieldWrapperClass1 {
-  // To suppress missing implicit constructor warnings.
-  factory Buffer._() { throw new UnsupportedError("Not supported"); }
+  Buffer.internal();
 
 }
 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
@@ -369,8 +367,7 @@ class Buffer extends NativeFieldWrapperClass1 {
 // http://www.khronos.org/registry/webgl/extensions/WEBGL_compressed_texture_atc/
 @Experimental
 class CompressedTextureAtc extends NativeFieldWrapperClass1 {
-  // To suppress missing implicit constructor warnings.
-  factory CompressedTextureAtc._() { throw new UnsupportedError("Not supported"); }
+  CompressedTextureAtc.internal();
 
   @DomName('WebGLCompressedTextureATC.COMPRESSED_RGBA_ATC_EXPLICIT_ALPHA_WEBGL')
   @DocsEditable
@@ -397,8 +394,7 @@ class CompressedTextureAtc extends NativeFieldWrapperClass1 {
 // http://www.khronos.org/registry/webgl/extensions/WEBGL_compressed_texture_pvrtc/
 @Experimental // experimental
 class CompressedTexturePvrtc extends NativeFieldWrapperClass1 {
-  // To suppress missing implicit constructor warnings.
-  factory CompressedTexturePvrtc._() { throw new UnsupportedError("Not supported"); }
+  CompressedTexturePvrtc.internal();
 
   @DomName('WebGLCompressedTexturePVRTC.COMPRESSED_RGBA_PVRTC_2BPPV1_IMG')
   @DocsEditable
@@ -429,8 +425,7 @@ class CompressedTexturePvrtc extends NativeFieldWrapperClass1 {
 // http://www.khronos.org/registry/webgl/extensions/WEBGL_compressed_texture_s3tc/
 @Experimental // experimental
 class CompressedTextureS3TC extends NativeFieldWrapperClass1 {
-  // To suppress missing implicit constructor warnings.
-  factory CompressedTextureS3TC._() { throw new UnsupportedError("Not supported"); }
+  CompressedTextureS3TC.internal();
 
   @DomName('WebGLCompressedTextureS3TC.COMPRESSED_RGBA_S3TC_DXT1_EXT')
   @DocsEditable
@@ -460,8 +455,7 @@ class CompressedTextureS3TC extends NativeFieldWrapperClass1 {
 @DomName('WebGLContextAttributes')
 @Unstable
 class ContextAttributes extends NativeFieldWrapperClass1 {
-  // To suppress missing implicit constructor warnings.
-  factory ContextAttributes._() { throw new UnsupportedError("Not supported"); }
+  ContextAttributes.internal();
 
   @DomName('WebGLContextAttributes.alpha')
   @DocsEditable
@@ -523,8 +517,7 @@ class ContextAttributes extends NativeFieldWrapperClass1 {
 @DomName('WebGLContextEvent')
 @Unstable
 class ContextEvent extends Event {
-  // To suppress missing implicit constructor warnings.
-  factory ContextEvent._() { throw new UnsupportedError("Not supported"); }
+  ContextEvent.internal() : super.internal();
 
   @DomName('WebGLContextEvent.statusMessage')
   @DocsEditable
@@ -543,8 +536,7 @@ class ContextEvent extends Event {
 // http://www.khronos.org/registry/webgl/extensions/WEBGL_debug_renderer_info/
 @Experimental // experimental
 class DebugRendererInfo extends NativeFieldWrapperClass1 {
-  // To suppress missing implicit constructor warnings.
-  factory DebugRendererInfo._() { throw new UnsupportedError("Not supported"); }
+  DebugRendererInfo.internal();
 
   @DomName('WebGLDebugRendererInfo.UNMASKED_RENDERER_WEBGL')
   @DocsEditable
@@ -567,8 +559,7 @@ class DebugRendererInfo extends NativeFieldWrapperClass1 {
 // http://www.khronos.org/registry/webgl/extensions/WEBGL_debug_shaders/
 @Experimental // experimental
 class DebugShaders extends NativeFieldWrapperClass1 {
-  // To suppress missing implicit constructor warnings.
-  factory DebugShaders._() { throw new UnsupportedError("Not supported"); }
+  DebugShaders.internal();
 
   @DomName('WebGLDebugShaders.getTranslatedShaderSource')
   @DocsEditable
@@ -587,8 +578,7 @@ class DebugShaders extends NativeFieldWrapperClass1 {
 // http://www.khronos.org/registry/webgl/extensions/WEBGL_depth_texture/
 @Experimental // experimental
 class DepthTexture extends NativeFieldWrapperClass1 {
-  // To suppress missing implicit constructor warnings.
-  factory DepthTexture._() { throw new UnsupportedError("Not supported"); }
+  DepthTexture.internal();
 
   @DomName('WebGLDepthTexture.UNSIGNED_INT_24_8_WEBGL')
   @DocsEditable
@@ -607,8 +597,7 @@ class DepthTexture extends NativeFieldWrapperClass1 {
 // http://www.khronos.org/registry/webgl/specs/latest/
 @Experimental // stable
 class ExtDrawBuffers extends NativeFieldWrapperClass1 {
-  // To suppress missing implicit constructor warnings.
-  factory ExtDrawBuffers._() { throw new UnsupportedError("Not supported"); }
+  ExtDrawBuffers.internal();
 
   @DomName('EXTDrawBuffers.COLOR_ATTACHMENT0_EXT')
   @DocsEditable
@@ -759,8 +748,7 @@ class ExtDrawBuffers extends NativeFieldWrapperClass1 {
 // http://www.khronos.org/registry/webgl/extensions/EXT_frag_depth/
 @Experimental
 class ExtFragDepth extends NativeFieldWrapperClass1 {
-  // To suppress missing implicit constructor warnings.
-  factory ExtFragDepth._() { throw new UnsupportedError("Not supported"); }
+  ExtFragDepth.internal();
 
 }
 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
@@ -775,8 +763,7 @@ class ExtFragDepth extends NativeFieldWrapperClass1 {
 // http://www.khronos.org/registry/webgl/extensions/EXT_texture_filter_anisotropic/
 @Experimental
 class ExtTextureFilterAnisotropic extends NativeFieldWrapperClass1 {
-  // To suppress missing implicit constructor warnings.
-  factory ExtTextureFilterAnisotropic._() { throw new UnsupportedError("Not supported"); }
+  ExtTextureFilterAnisotropic.internal();
 
   @DomName('EXTTextureFilterAnisotropic.MAX_TEXTURE_MAX_ANISOTROPY_EXT')
   @DocsEditable
@@ -798,8 +785,7 @@ class ExtTextureFilterAnisotropic extends NativeFieldWrapperClass1 {
 @DomName('WebGLFramebuffer')
 @Unstable
 class Framebuffer extends NativeFieldWrapperClass1 {
-  // To suppress missing implicit constructor warnings.
-  factory Framebuffer._() { throw new UnsupportedError("Not supported"); }
+  Framebuffer.internal();
 
 }
 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
@@ -814,8 +800,7 @@ class Framebuffer extends NativeFieldWrapperClass1 {
 // http://www.khronos.org/registry/webgl/extensions/WEBGL_lose_context/
 @Experimental
 class LoseContext extends NativeFieldWrapperClass1 {
-  // To suppress missing implicit constructor warnings.
-  factory LoseContext._() { throw new UnsupportedError("Not supported"); }
+  LoseContext.internal();
 
   @DomName('WebGLLoseContext.loseContext')
   @DocsEditable
@@ -838,8 +823,7 @@ class LoseContext extends NativeFieldWrapperClass1 {
 // http://www.khronos.org/registry/webgl/extensions/OES_element_index_uint/
 @Experimental // experimental
 class OesElementIndexUint extends NativeFieldWrapperClass1 {
-  // To suppress missing implicit constructor warnings.
-  factory OesElementIndexUint._() { throw new UnsupportedError("Not supported"); }
+  OesElementIndexUint.internal();
 
 }
 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
@@ -854,8 +838,7 @@ class OesElementIndexUint extends NativeFieldWrapperClass1 {
 // http://www.khronos.org/registry/webgl/extensions/OES_standard_derivatives/
 @Experimental // experimental
 class OesStandardDerivatives extends NativeFieldWrapperClass1 {
-  // To suppress missing implicit constructor warnings.
-  factory OesStandardDerivatives._() { throw new UnsupportedError("Not supported"); }
+  OesStandardDerivatives.internal();
 
   @DomName('OESStandardDerivatives.FRAGMENT_SHADER_DERIVATIVE_HINT_OES')
   @DocsEditable
@@ -874,8 +857,7 @@ class OesStandardDerivatives extends NativeFieldWrapperClass1 {
 // http://www.khronos.org/registry/webgl/extensions/OES_texture_float/
 @Experimental // experimental
 class OesTextureFloat extends NativeFieldWrapperClass1 {
-  // To suppress missing implicit constructor warnings.
-  factory OesTextureFloat._() { throw new UnsupportedError("Not supported"); }
+  OesTextureFloat.internal();
 
 }
 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
@@ -890,8 +872,7 @@ class OesTextureFloat extends NativeFieldWrapperClass1 {
 // http://www.khronos.org/registry/webgl/extensions/OES_texture_float_linear/
 @Experimental
 class OesTextureFloatLinear extends NativeFieldWrapperClass1 {
-  // To suppress missing implicit constructor warnings.
-  factory OesTextureFloatLinear._() { throw new UnsupportedError("Not supported"); }
+  OesTextureFloatLinear.internal();
 
 }
 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
@@ -906,8 +887,7 @@ class OesTextureFloatLinear extends NativeFieldWrapperClass1 {
 // http://www.khronos.org/registry/webgl/extensions/OES_texture_half_float/
 @Experimental // experimental
 class OesTextureHalfFloat extends NativeFieldWrapperClass1 {
-  // To suppress missing implicit constructor warnings.
-  factory OesTextureHalfFloat._() { throw new UnsupportedError("Not supported"); }
+  OesTextureHalfFloat.internal();
 
   @DomName('OESTextureHalfFloat.HALF_FLOAT_OES')
   @DocsEditable
@@ -926,8 +906,7 @@ class OesTextureHalfFloat extends NativeFieldWrapperClass1 {
 // http://www.khronos.org/registry/webgl/extensions/OES_texture_half_float_linear/
 @Experimental
 class OesTextureHalfFloatLinear extends NativeFieldWrapperClass1 {
-  // To suppress missing implicit constructor warnings.
-  factory OesTextureHalfFloatLinear._() { throw new UnsupportedError("Not supported"); }
+  OesTextureHalfFloatLinear.internal();
 
 }
 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
@@ -942,8 +921,7 @@ class OesTextureHalfFloatLinear extends NativeFieldWrapperClass1 {
 // http://www.khronos.org/registry/webgl/extensions/OES_vertex_array_object/
 @Experimental // experimental
 class OesVertexArrayObject extends NativeFieldWrapperClass1 {
-  // To suppress missing implicit constructor warnings.
-  factory OesVertexArrayObject._() { throw new UnsupportedError("Not supported"); }
+  OesVertexArrayObject.internal();
 
   @DomName('OESVertexArrayObject.VERTEX_ARRAY_BINDING_OES')
   @DocsEditable
@@ -977,8 +955,7 @@ class OesVertexArrayObject extends NativeFieldWrapperClass1 {
 @DomName('WebGLProgram')
 @Unstable
 class Program extends NativeFieldWrapperClass1 {
-  // To suppress missing implicit constructor warnings.
-  factory Program._() { throw new UnsupportedError("Not supported"); }
+  Program.internal();
 
 }
 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
@@ -992,8 +969,7 @@ class Program extends NativeFieldWrapperClass1 {
 @DomName('WebGLRenderbuffer')
 @Unstable
 class Renderbuffer extends NativeFieldWrapperClass1 {
-  // To suppress missing implicit constructor warnings.
-  factory Renderbuffer._() { throw new UnsupportedError("Not supported"); }
+  Renderbuffer.internal();
 
 }
 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
@@ -1010,8 +986,7 @@ class Renderbuffer extends NativeFieldWrapperClass1 {
 @Experimental
 @Unstable
 class RenderingContext extends CanvasRenderingContext {
-  // To suppress missing implicit constructor warnings.
-  factory RenderingContext._() { throw new UnsupportedError("Not supported"); }
+  RenderingContext.internal() : super.internal();
 
   /// Checks if this type is supported on the current platform.
   static bool get supported => true;
@@ -2849,8 +2824,7 @@ class RenderingContext extends CanvasRenderingContext {
 @DocsEditable
 @DomName('WebGLShader')
 class Shader extends NativeFieldWrapperClass1 {
-  // To suppress missing implicit constructor warnings.
-  factory Shader._() { throw new UnsupportedError("Not supported"); }
+  Shader.internal();
 
 }
 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
@@ -2863,8 +2837,7 @@ class Shader extends NativeFieldWrapperClass1 {
 @DocsEditable
 @DomName('WebGLShaderPrecisionFormat')
 class ShaderPrecisionFormat extends NativeFieldWrapperClass1 {
-  // To suppress missing implicit constructor warnings.
-  factory ShaderPrecisionFormat._() { throw new UnsupportedError("Not supported"); }
+  ShaderPrecisionFormat.internal();
 
   @DomName('WebGLShaderPrecisionFormat.precision')
   @DocsEditable
@@ -2889,8 +2862,7 @@ class ShaderPrecisionFormat extends NativeFieldWrapperClass1 {
 @DocsEditable
 @DomName('WebGLTexture')
 class Texture extends NativeFieldWrapperClass1 {
-  // To suppress missing implicit constructor warnings.
-  factory Texture._() { throw new UnsupportedError("Not supported"); }
+  Texture.internal();
 
 }
 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
@@ -2903,8 +2875,7 @@ class Texture extends NativeFieldWrapperClass1 {
 @DocsEditable
 @DomName('WebGLUniformLocation')
 class UniformLocation extends NativeFieldWrapperClass1 {
-  // To suppress missing implicit constructor warnings.
-  factory UniformLocation._() { throw new UnsupportedError("Not supported"); }
+  UniformLocation.internal();
 
 }
 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
@@ -2919,7 +2890,6 @@ class UniformLocation extends NativeFieldWrapperClass1 {
 // http://www.khronos.org/registry/webgl/extensions/OES_vertex_array_object/
 @Experimental // experimental
 class VertexArrayObject extends NativeFieldWrapperClass1 {
-  // To suppress missing implicit constructor warnings.
-  factory VertexArrayObject._() { throw new UnsupportedError("Not supported"); }
+  VertexArrayObject.internal();
 
 }