16-bit video upload to float: intermediate R16_EXT and copy to float.

third_party/WebKit/Source/core/html/HTMLVideoElement.cpp

 /*
  * Copyright (C) 2007, 2008, 2009, 2010 Apple Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 305 matching lines @@
     return false;
 
   return webMediaPlayer()->copyVideoTextureToPlatformTexture(
       gl, texture, premultiplyAlpha, flipY);
 }
 
 bool HTMLVideoElement::texImageImpl(
     WebMediaPlayer::TexImageFunctionID functionID,
     GLenum target,
     gpu::gles2::GLES2Interface* gl,
+    GLuint texture,
     GLint level,
     GLint internalformat,
     GLenum format,
     GLenum type,
     GLint xoffset,
     GLint yoffset,
     GLint zoffset,
     bool flipY,
     bool premultiplyAlpha) {
   if (!webMediaPlayer())
     return false;
   return webMediaPlayer()->texImageImpl(
-      functionID, target, gl, level, internalformat, format, type, xoffset,
-      yoffset, zoffset, flipY, premultiplyAlpha);
+      functionID, target, gl, texture, level, internalformat, format, type,
+      xoffset, yoffset, zoffset, flipY, premultiplyAlpha);
 }
 
 bool HTMLVideoElement::hasAvailableVideoFrame() const {
   if (!webMediaPlayer())
     return false;
 
   return webMediaPlayer()->hasVideo() &&
          webMediaPlayer()->getReadyState() >=
              WebMediaPlayer::ReadyStateHaveCurrentData;
 }
@@ skipping 122 matching lines @@
     return ScriptPromise();
   if (!ImageBitmap::isResizeOptionValid(options, exceptionState))
     return ScriptPromise();
   return ImageBitmapSource::fulfillImageBitmap(
       scriptState,
       ImageBitmap::create(this, cropRect,
                           eventTarget.toLocalDOMWindow()->document(), options));
 }
 
 }  // namespace blink