Add an interface QuotaEvictionHandler.

webkit/quota/quota_manager.cc

Index: webkit/quota/quota_manager.cc
diff --git a/webkit/quota/quota_manager.cc b/webkit/quota/quota_manager.cc
index 832d8e4f42b1c9cc88070d096f90ce44f967b650..01f9c75b989cda7a84d7ca6378ca8b0ef2606005 100644
--- a/webkit/quota/quota_manager.cc
+++ b/webkit/quota/quota_manager.cc
@@ -690,20 +690,6 @@ void QuotaManager::NotifyOriginNoLongerInUse(const GURL& origin) {
     origins_in_use_.erase(origin);
 }
 
-void QuotaManager::GetLRUOrigin(
-    StorageType type,
-    GetLRUOriginCallback* callback) {
-  LazyInitialize();
-  if (db_disabled_) {
-    callback->Run(GURL());
-    delete callback;
-    return;
-  }
-  scoped_refptr<GetLRUOriginTask> task(new GetLRUOriginTask(
-      this, database_.get(), db_thread_, type, origins_in_use_, callback));
-  task->Start();
-}
-
 UsageTracker* QuotaManager::GetUsageTracker(StorageType type) const {
   switch (type) {
     case kStorageTypeTemporary:
@@ -735,6 +721,32 @@ void QuotaManager::DeleteOriginFromDatabase(
   task->Start();
 }
 
+void QuotaManager::GetLRUOrigin(
+    StorageType type,
+    GetLRUOriginCallback* callback) {
+  LazyInitialize();
+  if (db_disabled_) {
+    callback->Run(GURL());
+    delete callback;
+    return;
+  }
+  scoped_refptr<GetLRUOriginTask> task(new GetLRUOriginTask(
+      this, database_.get(), db_thread_, type, origins_in_use_, callback));
+  task->Start();
+}
+
+void QuotaManager::EvictOriginData(
+    const GURL& origin,
+    StorageType type,
+    EvictOriginDataCallback* callback) {
+  // TODO(dmikurube): Implement it.
+}
+
+void QuotaManager::GetUsageAndQuotaForEviction(
+    GetUsageAndQuotaForEvictionCallback* callback) {
+  // TODO(dmikurube): Implement it.
+}
+
 void QuotaManager::DeleteOnCorrectThread() const {
   if (!io_thread_->BelongsToCurrentThread()) {
     io_thread_->DeleteSoon(FROM_HERE, this);