Fix even more remaining uses of WeakPtr<T>'s operator T* conversion

webkit/browser/quota/quota_manager.cc

Index: webkit/browser/quota/quota_manager.cc
diff --git a/webkit/browser/quota/quota_manager.cc b/webkit/browser/quota/quota_manager.cc
index 54d8c13ca6d65505c088865ccaf1134fa6169994..b2c78b030fd476880ef6044a591372d94aaca881 100644
--- a/webkit/browser/quota/quota_manager.cc
+++ b/webkit/browser/quota/quota_manager.cc
@@ -709,7 +709,7 @@ class QuotaManager::GetModifiedSinceHelper {
                            const GetOriginsCallback& callback,
                            StorageType type,
                            bool success) {
-    if (!manager) {
+    if (!manager.get()) {
       // The operation was aborted.
       callback.Run(std::set<GURL>(), type);
       return;
@@ -734,7 +734,7 @@ class QuotaManager::DumpQuotaTableHelper {
   void DidDumpQuotaTable(const base::WeakPtr<QuotaManager>& manager,
                          const DumpQuotaTableCallback& callback,
                          bool success) {
-    if (!manager) {
+    if (!manager.get()) {
       // The operation was aborted.
       callback.Run(QuotaTableEntries());
       return;
@@ -766,7 +766,7 @@ class QuotaManager::DumpOriginInfoTableHelper {
   void DidDumpOriginInfoTable(const base::WeakPtr<QuotaManager>& manager,
                               const DumpOriginInfoTableCallback& callback,
                               bool success) {
-    if (!manager) {
+    if (!manager.get()) {
       // The operation was aborted.
       callback.Run(OriginInfoTableEntries());
       return;