Revert "Remove OwnPtr from Blink."

third_party/WebKit/Source/modules/webgl/WebGLRenderingContext.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 44 matching lines @@
 #include "modules/webgl/WebGLContextEvent.h"
 #include "modules/webgl/WebGLDebugRendererInfo.h"
 #include "modules/webgl/WebGLDebugShaders.h"
 #include "modules/webgl/WebGLDepthTexture.h"
 #include "modules/webgl/WebGLDrawBuffers.h"
 #include "modules/webgl/WebGLLoseContext.h"
 #include "platform/CheckedInt.h"
 #include "platform/graphics/gpu/DrawingBuffer.h"
 #include "public/platform/Platform.h"
 #include "public/platform/WebGraphicsContext3DProvider.h"
-#include <memory>
 
 namespace blink {
 
 // An helper function for the two create() methods. The return value is an
 // indicate of whether the create() should return nullptr or not.
 static bool shouldCreateContext(WebGraphicsContext3DProvider* contextProvider)
 {
     if (!contextProvider)
         return false;
     gpu::gles2::GLES2Interface* gl = contextProvider->contextGL();
-    std::unique_ptr<Extensions3DUtil> extensionsUtil = Extensions3DUtil::create(gl);
+    OwnPtr<Extensions3DUtil> extensionsUtil = Extensions3DUtil::create(gl);
     if (!extensionsUtil)
         return false;
     if (extensionsUtil->supportsExtension("GL_EXT_debug_marker")) {
         String contextLabel(String::format("WebGLRenderingContext-%p", contextProvider));
         gl->PushGroupMarkerEXT(0, contextLabel.ascii().data());
     }
     return true;
 }
 
 CanvasRenderingContext* WebGLRenderingContext::Factory::create(ScriptState* scriptState, OffscreenCanvas* offscreenCanvas, const CanvasContextCreationAttributes& attrs)
 {
     WebGLContextAttributes attributes = toWebGLContextAttributes(attrs);
-    std::unique_ptr<WebGraphicsContext3DProvider> contextProvider(createWebGraphicsContext3DProvider(scriptState, attributes, 1));
+    OwnPtr<WebGraphicsContext3DProvider> contextProvider(createWebGraphicsContext3DProvider(scriptState, attributes, 1));
     if (!shouldCreateContext(contextProvider.get()))
         return nullptr;
 
     WebGLRenderingContext* renderingContext = new WebGLRenderingContext(offscreenCanvas, std::move(contextProvider), attributes);
     if (!renderingContext->drawingBuffer())
         return nullptr;
     renderingContext->initializeNewContext();
     renderingContext->registerContextExtensions();
 
     return renderingContext;
 }
 
 CanvasRenderingContext* WebGLRenderingContext::Factory::create(HTMLCanvasElement* canvas, const CanvasContextCreationAttributes& attrs, Document&)
 {
     WebGLContextAttributes attributes = toWebGLContextAttributes(attrs);
-    std::unique_ptr<WebGraphicsContext3DProvider> contextProvider(createWebGraphicsContext3DProvider(canvas, attributes, 1));
+    OwnPtr<WebGraphicsContext3DProvider> contextProvider(createWebGraphicsContext3DProvider(canvas, attributes, 1));
     if (!shouldCreateContext(contextProvider.get()))
         return nullptr;
 
     WebGLRenderingContext* renderingContext = new WebGLRenderingContext(canvas, std::move(contextProvider), attributes);
     if (!renderingContext->drawingBuffer()) {
         canvas->dispatchEvent(WebGLContextEvent::create(EventTypeNames::webglcontextcreationerror, false, true, "Could not create a WebGL context."));
         return nullptr;
     }
     renderingContext->initializeNewContext();
     renderingContext->registerContextExtensions();
 
     return renderingContext;
 }
 
 void WebGLRenderingContext::Factory::onError(HTMLCanvasElement* canvas, const String& error)
 {
     canvas->dispatchEvent(WebGLContextEvent::create(EventTypeNames::webglcontextcreationerror, false, true, error));
 }
 
-WebGLRenderingContext::WebGLRenderingContext(HTMLCanvasElement* passedCanvas, std::unique_ptr<WebGraphicsContext3DProvider> contextProvider, const WebGLContextAttributes& requestedAttributes)
+WebGLRenderingContext::WebGLRenderingContext(HTMLCanvasElement* passedCanvas, PassOwnPtr<WebGraphicsContext3DProvider> contextProvider, const WebGLContextAttributes& requestedAttributes)
     : WebGLRenderingContextBase(passedCanvas, std::move(contextProvider), requestedAttributes)
 {
 }
 
-WebGLRenderingContext::WebGLRenderingContext(OffscreenCanvas* passedOffscreenCanvas, std::unique_ptr<WebGraphicsContext3DProvider> contextProvider, const WebGLContextAttributes& requestedAttributes)
+WebGLRenderingContext::WebGLRenderingContext(OffscreenCanvas* passedOffscreenCanvas, PassOwnPtr<WebGraphicsContext3DProvider> contextProvider, const WebGLContextAttributes& requestedAttributes)
     : WebGLRenderingContextBase(passedOffscreenCanvas, std::move(contextProvider), requestedAttributes)
 {
 }
 
 WebGLRenderingContext::~WebGLRenderingContext()
 {
 }
 
 void WebGLRenderingContext::setCanvasGetContextResult(RenderingContext& result)
 {
@@ skipping 91 matching lines @@
     visitor->traceWrappers(m_webglDebugShaders);
     visitor->traceWrappers(m_webglDrawBuffers);
     visitor->traceWrappers(m_webglCompressedTextureASTC);
     visitor->traceWrappers(m_webglCompressedTextureATC);
     visitor->traceWrappers(m_webglCompressedTextureETC1);
     visitor->traceWrappers(m_webglCompressedTexturePVRTC);
     visitor->traceWrappers(m_webglCompressedTextureS3TC);
     visitor->traceWrappers(m_webglDepthTexture);
 }
 } // namespace blink