Reserve Vector's capacity manually in CachedMetadata

third_party/WebKit/Source/core/fetch/CachedMetadataHandler.h

Index: third_party/WebKit/Source/core/fetch/CachedMetadataHandler.h
diff --git a/third_party/WebKit/Source/core/fetch/CachedMetadataHandler.h b/third_party/WebKit/Source/core/fetch/CachedMetadataHandler.h
index bc616790bf4d7cc2c75c7341e7159b30739e240c..4d3b11c604dcfa8849d3d5317b3eefe37c8a4cca 100644
--- a/third_party/WebKit/Source/core/fetch/CachedMetadataHandler.h
+++ b/third_party/WebKit/Source/core/fetch/CachedMetadataHandler.h
@@ -7,6 +7,7 @@
 
 #include "platform/heap/Handle.h"
 #include "wtf/Forward.h"
+#include <stdint.h>
 
 namespace blink {
 
@@ -24,12 +25,12 @@ public:
     // Caches the given metadata in association with this resource and suggests
     // that the platform persist it. The dataTypeID is a pseudo-randomly chosen
     // identifier that is used to distinguish data generated by the caller.
-    virtual void setCachedMetadata(unsigned dataTypeID, const char*, size_t, CacheType = SendToPlatform) = 0;
+    virtual void setCachedMetadata(uint32_t dataTypeID, const char*, size_t, CacheType = SendToPlatform) = 0;
     // Reset existing metadata, to allow setting new data.
     virtual void clearCachedMetadata(CacheType = CacheLocally) = 0;
     // Returns cached metadata of the given type associated with this resource.
     // This cached metadata can be pruned at any time.
-    virtual PassRefPtr<CachedMetadata> cachedMetadata(unsigned dataTypeID) const = 0;
+    virtual PassRefPtr<CachedMetadata> cachedMetadata(uint32_t dataTypeID) const = 0;
     // Returns the encoding to which the cache is specific.
     virtual String encoding() const = 0;