Remove OwnPtr from Blink.

third_party/WebKit/Source/platform/fonts/mac/FontCacheMac.mm

Index: third_party/WebKit/Source/platform/fonts/mac/FontCacheMac.mm
diff --git a/third_party/WebKit/Source/platform/fonts/mac/FontCacheMac.mm b/third_party/WebKit/Source/platform/fonts/mac/FontCacheMac.mm
index 26ff434bdcc0dc8896090080c8b8f037fced8b2a..3f14d83622c1ff9aed0f48859dc44388be748a93 100644
--- a/third_party/WebKit/Source/platform/fonts/mac/FontCacheMac.mm
+++ b/third_party/WebKit/Source/platform/fonts/mac/FontCacheMac.mm
@@ -41,7 +41,9 @@
 #include "public/platform/WebTaskRunner.h"
 #include "public/platform/WebTraceLocation.h"
 #include "wtf/Functional.h"
+#include "wtf/PtrUtil.h"
 #include "wtf/StdLibExtras.h"
+#include <memory>
 
 // Forward declare Mac SPIs.
 // Request for public API: rdar://13803570
@@ -202,7 +204,7 @@ PassRefPtr<SimpleFontData> FontCache::getLastResortFallbackFont(const FontDescri
     return getFontData(fontDescription, lucidaGrandeStr, false, shouldRetain);
 }
 
-PassOwnPtr<FontPlatformData> FontCache::createFontPlatformData(const FontDescription& fontDescription,
+std::unique_ptr<FontPlatformData> FontCache::createFontPlatformData(const FontDescription& fontDescription,
     const FontFaceCreationParams& creationParams, float fontSize)
 {
     NSFontTraitMask traits = fontDescription.style() ? NSFontItalicTrait : 0;
@@ -232,7 +234,7 @@ PassOwnPtr<FontPlatformData> FontCache::createFontPlatformData(const FontDescrip
     // Out-of-process loading occurs for registered fonts stored in non-system locations.
     // When loading fails, we do not want to use the returned FontPlatformData since it will not have
     // a valid SkTypeface.
-    OwnPtr<FontPlatformData> platformData = adoptPtr(new FontPlatformData(platformFont, size, syntheticBold, syntheticItalic, fontDescription.orientation()));
+    std::unique_ptr<FontPlatformData> platformData = wrapUnique(new FontPlatformData(platformFont, size, syntheticBold, syntheticItalic, fontDescription.orientation()));
     if (!platformData->typeface()) {
         return nullptr;
     }