Remove OwnPtr from Blink.

third_party/WebKit/Source/modules/webgl/WebGL2RenderingContext.cpp

Index: third_party/WebKit/Source/modules/webgl/WebGL2RenderingContext.cpp
diff --git a/third_party/WebKit/Source/modules/webgl/WebGL2RenderingContext.cpp b/third_party/WebKit/Source/modules/webgl/WebGL2RenderingContext.cpp
index 0f85d1114e2781cc350325863b4dd8dda02dab1c..a9ddea2fd78bdb879a3137a22bb8cd90e78169cc 100644
--- a/third_party/WebKit/Source/modules/webgl/WebGL2RenderingContext.cpp
+++ b/third_party/WebKit/Source/modules/webgl/WebGL2RenderingContext.cpp
@@ -28,6 +28,7 @@
 #include "platform/graphics/gpu/DrawingBuffer.h"
 #include "public/platform/Platform.h"
 #include "public/platform/WebGraphicsContext3DProvider.h"
+#include <memory>
 
 namespace blink {
 
@@ -39,11 +40,11 @@ CanvasRenderingContext* WebGL2RenderingContext::Factory::create(HTMLCanvasElemen
     }
 
     WebGLContextAttributes attributes = toWebGLContextAttributes(attrs);
-    OwnPtr<WebGraphicsContext3DProvider> contextProvider(createWebGraphicsContext3DProvider(canvas, attributes, 2));
+    std::unique_ptr<WebGraphicsContext3DProvider> contextProvider(createWebGraphicsContext3DProvider(canvas, attributes, 2));
     if (!contextProvider)
         return nullptr;
     gpu::gles2::GLES2Interface* gl = contextProvider->contextGL();
-    OwnPtr<Extensions3DUtil> extensionsUtil = Extensions3DUtil::create(gl);
+    std::unique_ptr<Extensions3DUtil> extensionsUtil = Extensions3DUtil::create(gl);
     if (!extensionsUtil)
         return nullptr;
     if (extensionsUtil->supportsExtension("GL_EXT_debug_marker")) {
@@ -69,7 +70,7 @@ void WebGL2RenderingContext::Factory::onError(HTMLCanvasElement* canvas, const S
     canvas->dispatchEvent(WebGLContextEvent::create(EventTypeNames::webglcontextcreationerror, false, true, error));
 }
 
-WebGL2RenderingContext::WebGL2RenderingContext(HTMLCanvasElement* passedCanvas, PassOwnPtr<WebGraphicsContext3DProvider> contextProvider, const WebGLContextAttributes& requestedAttributes)
+WebGL2RenderingContext::WebGL2RenderingContext(HTMLCanvasElement* passedCanvas, std::unique_ptr<WebGraphicsContext3DProvider> contextProvider, const WebGLContextAttributes& requestedAttributes)
     : WebGL2RenderingContextBase(passedCanvas, std::move(contextProvider), requestedAttributes)
 {
 }