Removing using namespace std as per Blink coding guidelines

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 2176169c1a991ef96676a85896f598bab5d5f26b..516866a47c2ebd98840f091b2b0eb30112c3971a 100644
--- a/Source/core/fetch/MemoryCache.cpp
+++ b/Source/core/fetch/MemoryCache.cpp
@@ -41,8 +41,6 @@
 #include "wtf/TemporaryChange.h"
 #include "wtf/text/CString.h"
 
-using namespace std;
-
 namespace WebCore {
 
 static MemoryCache* gMemoryCache;
@@ -149,9 +147,9 @@ Resource* MemoryCache::resourceForURL(const KURL& resourceURL)
 size_t MemoryCache::deadCapacity() const
 {
     // Dead resource capacity is whatever space is not occupied by live resources, bounded by an independent minimum and maximum.
-    size_t capacity = m_capacity - min(m_liveSize, m_capacity); // Start with available capacity.
-    capacity = max(capacity, m_minDeadCapacity); // Make sure it's above the minimum.
-    capacity = min(capacity, m_maxDeadCapacity); // Make sure it's below the maximum.
+    size_t capacity = m_capacity - std::min(m_liveSize, m_capacity); // Start with available capacity.
+    capacity = std::max(capacity, m_minDeadCapacity); // Make sure it's above the minimum.
+    capacity = std::min(capacity, m_maxDeadCapacity); // Make sure it's below the maximum.
     return capacity;
 }
 
@@ -316,7 +314,7 @@ bool MemoryCache::evict(Resource* resource)
 
 MemoryCache::LRUList* MemoryCache::lruListFor(Resource* resource)
 {
-    unsigned accessCount = max(resource->accessCount(), 1U);
+    unsigned accessCount = std::max(resource->accessCount(), 1U);
     unsigned queueIndex = WTF::fastLog2(resource->size() / accessCount);
 #ifndef NDEBUG
     resource->m_lruIndex = queueIndex;