Rename WebCore namespace to blink in Public

public/web/WebCache.h

Index: public/web/WebCache.h
diff --git a/public/web/WebCache.h b/public/web/WebCache.h
index 28557da76ccc07ae4ffe9f203dad487d7e58ee82..5bf1178a56aa36c434b340102d6095e5edd4781d 100644
--- a/public/web/WebCache.h
+++ b/public/web/WebCache.h
@@ -48,7 +48,7 @@ public:
         size_t deadSize;
     };
 
-    // A struct mirroring WebCore::MemoryCache::TypeStatistic.
+    // A struct mirroring blink::MemoryCache::TypeStatistic.
     struct ResourceTypeStat {
         size_t count;
         size_t size;
@@ -56,7 +56,7 @@ public:
         size_t decodedSize;
     };
 
-    // A struct mirroring WebCore::MemoryCache::Statistics.
+    // A struct mirroring blink::MemoryCache::Statistics.
     struct ResourceTypeStats {
         ResourceTypeStat images;
         ResourceTypeStat cssStyleSheets;