Revert "Remove OwnPtr from Blink."

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

 // Copyright 2015 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/SharedContextRateLimiter.h"
 
 #include "gpu/GLES2/gl2extchromium.h"
 #include "platform/graphics/gpu/Extensions3DUtil.h"
 #include "public/platform/Platform.h"
 #include "public/platform/WebGraphicsContext3DProvider.h"
 #include "third_party/khronos/GLES2/gl2.h"
-#include "wtf/PtrUtil.h"
-#include <memory>
 
 namespace blink {
 
-std::unique_ptr<SharedContextRateLimiter> SharedContextRateLimiter::create(unsigned maxPendingTicks)
+PassOwnPtr<SharedContextRateLimiter> SharedContextRateLimiter::create(unsigned maxPendingTicks)
 {
-    return wrapUnique(new SharedContextRateLimiter(maxPendingTicks));
+    return adoptPtr(new SharedContextRateLimiter(maxPendingTicks));
 }
 
 SharedContextRateLimiter::SharedContextRateLimiter(unsigned maxPendingTicks)
     : m_maxPendingTicks(maxPendingTicks)
     , m_canUseSyncQueries(false)
 {
-    m_contextProvider = wrapUnique(Platform::current()->createSharedOffscreenGraphicsContext3DProvider());
+    m_contextProvider = adoptPtr(Platform::current()->createSharedOffscreenGraphicsContext3DProvider());
     if (!m_contextProvider)
         return;
 
     gpu::gles2::GLES2Interface* gl = m_contextProvider->contextGL();
     if (gl && gl->GetGraphicsResetStatusKHR() == GL_NO_ERROR) {
-        std::unique_ptr<Extensions3DUtil> extensionsUtil = Extensions3DUtil::create(gl);
+        OwnPtr<Extensions3DUtil> extensionsUtil = Extensions3DUtil::create(gl);
         // TODO(junov): when the GLES 3.0 command buffer is ready, we could use fenceSync instead
         m_canUseSyncQueries = extensionsUtil->supportsExtension("GL_CHROMIUM_sync_query");
     }
 }
 
 void SharedContextRateLimiter::tick()
 {
     if (!m_contextProvider)
         return;
 
@@ skipping 31 matching lines @@
         while (m_queries.size() > 0) {
             gl->DeleteQueriesEXT(1, &m_queries.first());
             m_queries.removeFirst();
         }
     } else {
         m_queries.clear();
     }
 }
 
 } // namespace blink