Improve large tab strip by leveraging touch icons when present

content/browser/cancelable_request.h

Index: content/browser/cancelable_request.h
diff --git a/content/browser/cancelable_request.h b/content/browser/cancelable_request.h
index df27cbce26421ede756289a3353571666dca0cb7..756eed58f4bba4d093a015358e78d00d93d1e76e 100644
--- a/content/browser/cancelable_request.h
+++ b/content/browser/cancelable_request.h
@@ -238,12 +238,18 @@ class CancelableRequestConsumerTSimple : public CancelableRequestConsumerBase {
   // Returns true if there are any pending requests.
   bool HasPendingRequests() const;
 
+  // Returns true if there are any pending requests.
+  bool HasPendingRequestsForClientData(T client_data) const;
+
   // Returns the number of pending requests.
   size_t PendingRequestCount() const;
 
   // Cancels all requests outstanding.
   void CancelAllRequests();
 
+  // Cancels all requests outstanding matching the client data
+  void CancelAllRequestsForClientData(T client_data);
+
   // Returns the handle for the first request that has the specified client data
   // (in |handle|). Returns true if there is a request for the specified client
   // data, false otherwise.
@@ -338,6 +344,18 @@ bool CancelableRequestConsumerTSimple<T>::HasPendingRequests() const {
 }
 
 template<class T>
+bool CancelableRequestConsumerTSimple<T>::HasPendingRequestsForClientData(
+    T client_data) const {
+  for (typename PendingRequestList::const_iterator i =
+           pending_requests_.begin(); i != pending_requests_.end(); ++i) {
+    if (i->second == client_data) {
+      return true;
+    }
+  }
+  return false;
+}
+
+template<class T>
 size_t CancelableRequestConsumerTSimple<T>::PendingRequestCount() const {
   return pending_requests_.size();
 }
@@ -358,6 +376,17 @@ void CancelableRequestConsumerTSimple<T>::CancelAllRequests() {
 }
 
 template<class T>
+void CancelableRequestConsumerTSimple<T>::CancelAllRequestsForClientData(
+    T client_data) {
+  PendingRequestList copied_requests(pending_requests_);
+  for (typename PendingRequestList::const_iterator i = copied_requests.begin();
+      i != copied_requests.end(); ++i)
+    if (i->second == client_data)
+      i->first.provider->CancelRequest(i->first.handle);
+  copied_requests.clear();
+}
+
+template<class T>
 bool CancelableRequestConsumerTSimple<T>::GetFirstHandleForClientData(
     T client_data,
     CancelableRequestProvider::Handle* handle) {