Remove OwnPtr from Blink.

third_party/WebKit/Source/platform/exported/WebDataConsumerHandle.cpp

Index: third_party/WebKit/Source/platform/exported/WebDataConsumerHandle.cpp
diff --git a/third_party/WebKit/Source/platform/exported/WebDataConsumerHandle.cpp b/third_party/WebKit/Source/platform/exported/WebDataConsumerHandle.cpp
index 3e757f9eee89a487f88a7c94c6ccdea2badd54d8..5c870213adb2f7de05d8be7a6ddaae22fa49bbe0 100644
--- a/third_party/WebKit/Source/platform/exported/WebDataConsumerHandle.cpp
+++ b/third_party/WebKit/Source/platform/exported/WebDataConsumerHandle.cpp
@@ -5,8 +5,9 @@
 #include "public/platform/WebDataConsumerHandle.h"
 
 #include "platform/heap/Handle.h"
-
+#include "wtf/PtrUtil.h"
 #include <algorithm>
+#include <memory>
 #include <string.h>
 
 namespace blink {
@@ -21,10 +22,10 @@ WebDataConsumerHandle::~WebDataConsumerHandle()
     ASSERT(ThreadState::current());
 }
 
-PassOwnPtr<WebDataConsumerHandle::Reader> WebDataConsumerHandle::obtainReader(WebDataConsumerHandle::Client* client)
+std::unique_ptr<WebDataConsumerHandle::Reader> WebDataConsumerHandle::obtainReader(WebDataConsumerHandle::Client* client)
 {
     ASSERT(ThreadState::current());
-    return adoptPtr(obtainReaderInternal(client));
+    return wrapUnique(obtainReaderInternal(client));
 }
 
 WebDataConsumerHandle::Result WebDataConsumerHandle::Reader::read(void* data, size_t size, Flags flags, size_t* readSize)