IndexedDB: Treat count of 0 as unbounded for getAll() methods

Source/modules/indexeddb/IDBIndex.cpp

Index: Source/modules/indexeddb/IDBIndex.cpp
diff --git a/Source/modules/indexeddb/IDBIndex.cpp b/Source/modules/indexeddb/IDBIndex.cpp
index f3d31e7656922316aa306938e55245a077964e86..7321fa13cab6177ad006ddd84934c7a723c406fd 100644
--- a/Source/modules/indexeddb/IDBIndex.cpp
+++ b/Source/modules/indexeddb/IDBIndex.cpp
@@ -235,10 +235,9 @@ IDBRequest* IDBIndex::getInternal(ScriptState* scriptState, const ScriptValue& k
 
 IDBRequest* IDBIndex::getAllInternal(ScriptState* scriptState, const ScriptValue& range, unsigned long maxCount, ExceptionState& exceptionState, bool keyOnly)
 {
-    if (!maxCount) {
-        exceptionState.throwTypeError(IDBDatabase::notValidMaxCountErrorMessage);
-        return nullptr;
-    }
+    if (!maxCount)
+        maxCount = std::numeric_limits<uint32_t>::max();
+
     if (isDeleted()) {
         exceptionState.throwDOMException(InvalidStateError, IDBDatabase::indexDeletedErrorMessage);
         return nullptr;