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

third_party/WebKit/Source/platform/graphics/gpu/Extensions3DUtil.cpp

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "platform/graphics/gpu/Extensions3DUtil.h"
 
+#include "gpu/command_buffer/client/gles2_interface.h"
 #include "public/platform/WebGraphicsContext3D.h"
 #include "wtf/text/CString.h"
 #include "wtf/text/StringHash.h"
 
 namespace blink {
 
 namespace {
 
 void splitStringHelper(const String& str, HashSet<String>& set)
 {
     Vector<String> substrings;
     str.split(' ', substrings);
     for (size_t i = 0; i < substrings.size(); ++i)
         set.add(substrings[i]);
 }
 
 } // anonymous namespace
 
-PassOwnPtr<Extensions3DUtil> Extensions3DUtil::create(WebGraphicsContext3D* context)
+PassOwnPtr<Extensions3DUtil> Extensions3DUtil::create(WebGraphicsContext3D* context, gpu::gles2::GLES2Interface* gl)
 {
-    OwnPtr<Extensions3DUtil> out = adoptPtr(new Extensions3DUtil(context));
+    OwnPtr<Extensions3DUtil> out = adoptPtr(new Extensions3DUtil(context, gl));
     out->initializeExtensions();
     return out.release();
 }
 
-Extensions3DUtil::Extensions3DUtil(WebGraphicsContext3D* context)
+Extensions3DUtil::Extensions3DUtil(WebGraphicsContext3D* context, gpu::gles2::GLES2Interface* gl)
     : m_context(context)
+    , m_gl(gl)
     , m_isValid(true)
 {
 }
 
 Extensions3DUtil::~Extensions3DUtil()
 {
 }
 
 void Extensions3DUtil::initializeExtensions()
 {
-    if (m_context->isContextLost()) {
+    if (m_gl->GetGraphicsResetStatusKHR() != GL_NO_ERROR) {
         // If the context is lost don't initialize the extension strings.
         // This will cause supportsExtension, ensureExtensionEnabled, and isExtensionEnabled to always return false.
         m_isValid = false;
         return;
     }
 
     String extensionsString = m_context->getString(GL_EXTENSIONS);
     splitStringHelper(extensionsString, m_enabledExtensions);
 
     String requestableExtensionsString = m_context->getRequestableExtensionsCHROMIUM();
@@ skipping 30 matching lines @@
     // FIXME: restriction of (RGB || RGBA)/UNSIGNED_BYTE/(Level 0) should be lifted when
     // WebGraphicsContext3D::copyTextureCHROMIUM(...) are fully functional.
     if (destTarget == GL_TEXTURE_2D && (destFormat == GL_RGB || destFormat == GL_RGBA)
         && destType == GL_UNSIGNED_BYTE
         && !level)
         return true;
     return false;
 }
 
 } // namespace blink