Expose GLES2Interface to blink, and delete isContextLost() from WGC3D.

third_party/WebKit/Source/modules/webgl/WebGLRenderingContextBase.cpp

 /*
  * Copyright (C) 2009 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 27 matching lines @@
 #include "core/frame/Settings.h"
 #include "core/html/HTMLCanvasElement.h"
 #include "core/html/HTMLImageElement.h"
 #include "core/html/HTMLVideoElement.h"
 #include "core/html/ImageData.h"
 #include "core/inspector/ConsoleMessage.h"
 #include "core/inspector/InspectorInstrumentation.h"
 #include "core/layout/LayoutBox.h"
 #include "core/loader/FrameLoader.h"
 #include "core/loader/FrameLoaderClient.h"
+#include "gpu/command_buffer/client/gles2_interface.h"
 #include "modules/webgl/ANGLEInstancedArrays.h"
 #include "modules/webgl/CHROMIUMSubscribeUniform.h"
 #include "modules/webgl/CHROMIUMValuebuffer.h"
 #include "modules/webgl/EXTBlendMinMax.h"
 #include "modules/webgl/EXTFragDepth.h"
 #include "modules/webgl/EXTShaderTextureLOD.h"
 #include "modules/webgl/EXTTextureFilterAnisotropic.h"
 #include "modules/webgl/OESElementIndexUint.h"
 #include "modules/webgl/OESStandardDerivatives.h"
 #include "modules/webgl/OESTextureFloat.h"
@@ skipping 5007 matching lines @@
 void WebGLRenderingContextBase::setFilterQuality(SkFilterQuality filterQuality)
 {
     if (!isContextLost() && drawingBuffer()) {
         drawingBuffer()->setFilterQuality(filterQuality);
     }
 }
 
 Extensions3DUtil* WebGLRenderingContextBase::extensionsUtil()
 {
     if (!m_extensionsUtil) {
-        m_extensionsUtil = Extensions3DUtil::create(webContext());
+        WebGraphicsContext3D* context = webContext();
+        gpu::gles2::GLES2Interface* gl = context->getGLES2Interface();
+        m_extensionsUtil = Extensions3DUtil::create(context, gl);
         // The only reason the ExtensionsUtil should be invalid is if the webContext is lost.
-        ASSERT(m_extensionsUtil->isValid() || webContext()->isContextLost());
+        ASSERT(m_extensionsUtil->isValid() || gl->GetGraphicsResetStatusKHR() != GL_NO_ERROR);
     }
     return m_extensionsUtil.get();
 }
 
 void WebGLRenderingContextBase::removeSharedObject(WebGLSharedObject* object)
 {
     m_contextGroup->removeObject(object);
 }
 
 void WebGLRenderingContextBase::addSharedObject(WebGLSharedObject* object)
@@ skipping 1197 matching lines @@
         webContext()->pixelStorei(GL_UNPACK_ALIGNMENT, 1);
 }
 
 void WebGLRenderingContextBase::restoreUnpackParameters()
 {
     if (m_unpackAlignment != 1)
         webContext()->pixelStorei(GL_UNPACK_ALIGNMENT, m_unpackAlignment);
 }
 
 } // namespace blink