Rename WebKit namespace to blink

Source/core/fetch/MemoryCache.cpp

Index: Source/core/fetch/MemoryCache.cpp
diff --git a/Source/core/fetch/MemoryCache.cpp b/Source/core/fetch/MemoryCache.cpp
index 22ce954b3e0091cdfdfc9a4165e68f7bd093a838..9d87d47ce1510233ff5270eca1c5e2c4a3228164 100644
--- a/Source/core/fetch/MemoryCache.cpp
+++ b/Source/core/fetch/MemoryCache.cpp
@@ -92,7 +92,7 @@ MemoryCache::MemoryCache()
 MemoryCache::~MemoryCache()
 {
     if (m_prunePending)
-        WebKit::Platform::current()->currentThread()->removeTaskObserver(this);
+        blink::Platform::current()->currentThread()->removeTaskObserver(this);
 }
 
 KURL MemoryCache::removeFragmentIdentifierIfNeeded(const KURL& originalURL)
@@ -595,7 +595,7 @@ void MemoryCache::prune(Resource* justReleasedResource)
             pruneNow(currentTime); // Delay exceeded, prune now.
         } else {
             // Defer.
-            WebKit::Platform::current()->currentThread()->addTaskObserver(this);
+            blink::Platform::current()->currentThread()->addTaskObserver(this);
             m_prunePending = true;
         }
     }
@@ -630,7 +630,7 @@ void MemoryCache::pruneNow(double currentTime)
 {
     if (m_prunePending) {
         m_prunePending = false;
-        WebKit::Platform::current()->currentThread()->removeTaskObserver(this);
+        blink::Platform::current()->currentThread()->removeTaskObserver(this);
     }
 
     TemporaryChange<bool> reentrancyProtector(m_inPruneResources, true);