Implement WEBGL_compressed_texture_s3tc_srgb

third_party/WebKit/Source/modules/webgl/WebGLCompressedTextureS3TCsRGB.idl

Index: third_party/WebKit/Source/modules/webgl/WebGLCompressedTextureS3TCsRGB.idl
diff --git a/third_party/WebKit/Source/modules/webgl/WebGLCompressedTexturePVRTC.idl b/third_party/WebKit/Source/modules/webgl/WebGLCompressedTextureS3TCsRGB.idl
similarity index 78%
copy from third_party/WebKit/Source/modules/webgl/WebGLCompressedTexturePVRTC.idl
copy to third_party/WebKit/Source/modules/webgl/WebGLCompressedTextureS3TCsRGB.idl
index fbf14f1ca5f7d74daaa39b55089dc78582145276..26f420b784bebb691a2e3b969af6b19e90cdc133 100644
--- a/third_party/WebKit/Source/modules/webgl/WebGLCompressedTexturePVRTC.idl
+++ b/third_party/WebKit/Source/modules/webgl/WebGLCompressedTextureS3TCsRGB.idl
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2013 Google Inc. All rights reserved.
+ * Copyright (C) 2016 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
@@ -27,10 +27,10 @@
     NoInterfaceObject,
     DoNotCheckConstants,
     SetWrapperReferenceFrom=canvas,
-] interface WebGLCompressedTexturePVRTC {
+] interface WebGLCompressedTextureS3TCsRGB {
     /* Compressed Texture Formats */
-    const unsigned long COMPRESSED_RGB_PVRTC_4BPPV1_IMG  = 0x8C00;
-    const unsigned long COMPRESSED_RGB_PVRTC_2BPPV1_IMG  = 0x8C01;
-    const unsigned long COMPRESSED_RGBA_PVRTC_4BPPV1_IMG = 0x8C02;
-    const unsigned long COMPRESSED_RGBA_PVRTC_2BPPV1_IMG = 0x8C03;
+    const unsigned long COMPRESSED_SRGB_S3TC_DXT1_EXT        = 0x8C4C;
+    const unsigned long COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT  = 0x8C4D;
+    const unsigned long COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT  = 0x8C4E;
+    const unsigned long COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT  = 0x8C4F;
 };