Use C++11 range-based loop in core/fetch

Source/core/fetch/RawResource.cpp

Index: Source/core/fetch/RawResource.cpp
diff --git a/Source/core/fetch/RawResource.cpp b/Source/core/fetch/RawResource.cpp
index 3977f56350ff0d59fc2f56da6371801685e010d2..38699e8c7313d23e364d0a8e82f94d29051e52b0 100644
--- a/Source/core/fetch/RawResource.cpp
+++ b/Source/core/fetch/RawResource.cpp
@@ -57,15 +57,12 @@ void RawResource::didAddClient(ResourceClient* c)
     // so a protector is necessary.
     ResourcePtr<RawResource> protect(this);
     RawResourceClient* client = static_cast<RawResourceClient*>(c);
-    size_t redirectCount = redirectChain().size();
-    for (size_t i = 0; i < redirectCount; i++) {
-        RedirectPair redirect = redirectChain()[i];
+    for (const auto& redirect : redirectChain()) {
         ResourceRequest request(redirect.m_request);
         client->redirectReceived(this, request, redirect.m_redirectResponse);
         if (!hasClient(c))
             return;
     }
-    ASSERT(redirectCount == redirectChain().size());
 
     if (!m_response.isNull())
         client->responseReceived(this, m_response);
@@ -173,17 +170,15 @@ bool RawResource::canReuse(const ResourceRequest& newRequest) const
     const HTTPHeaderMap& newHeaders = newRequest.httpHeaderFields();
     const HTTPHeaderMap& oldHeaders = m_resourceRequest.httpHeaderFields();
 
-    HTTPHeaderMap::const_iterator end = newHeaders.end();
-    for (HTTPHeaderMap::const_iterator i = newHeaders.begin(); i != end; ++i) {
-        AtomicString headerName = i->key;
-        if (!shouldIgnoreHeaderForCacheReuse(headerName) && i->value != oldHeaders.get(headerName))
+    for (const auto& header : newHeaders) {
+        AtomicString headerName = header.key;
+        if (!shouldIgnoreHeaderForCacheReuse(headerName) && header.value != oldHeaders.get(headerName))
             return false;
     }
 
-    end = oldHeaders.end();
-    for (HTTPHeaderMap::const_iterator i = oldHeaders.begin(); i != end; ++i) {
-        AtomicString headerName = i->key;
-        if (!shouldIgnoreHeaderForCacheReuse(headerName) && i->value != newHeaders.get(headerName))
+    for (const auto& header : oldHeaders) {
+        AtomicString headerName = header.key;
+        if (!shouldIgnoreHeaderForCacheReuse(headerName) && header.value != newHeaders.get(headerName))
             return false;
     }