Make FileSystemOperation's lifetime more explicit.

webkit/fileapi/sandboxed_file_system_operation.cc

Index: webkit/fileapi/sandboxed_file_system_operation.cc
diff --git a/webkit/fileapi/sandboxed_file_system_operation.cc b/webkit/fileapi/sandboxed_file_system_operation.cc
index fc77ce319a6a00182cb14adbce171a72ff396fa7..1acac0cf56608b965c1b244157eebcc3b28f0d26 100644
--- a/webkit/fileapi/sandboxed_file_system_operation.cc
+++ b/webkit/fileapi/sandboxed_file_system_operation.cc
@@ -126,7 +126,7 @@ void SandboxedFileSystemOperation::TouchFile(const FilePath& path,
 void SandboxedFileSystemOperation::DidGetRootPath(
     bool success, const FilePath& path, const std::string& name) {
   DCHECK(success || path.empty());
-  dispatcher()->DidOpenFileSystem(name, path);
+  destructive_dispatcher()->DidOpenFileSystem(name, path);
 }
 
 bool SandboxedFileSystemOperation::VerifyFileSystemPathForRead(
@@ -135,7 +135,7 @@ bool SandboxedFileSystemOperation::VerifyFileSystemPathForRead(
   // |path| is under the valid FileSystem root path for this host context.
   if (!file_system_context_->path_manager()->CrackFileSystemPath(
           path, NULL, NULL, NULL)) {
-    dispatcher()->DidFail(base::PLATFORM_FILE_ERROR_SECURITY);
+    destructive_dispatcher()->DidFail(base::PLATFORM_FILE_ERROR_SECURITY);
     return false;
   }
   return true;
@@ -147,25 +147,25 @@ bool SandboxedFileSystemOperation::VerifyFileSystemPathForWrite(
   FilePath virtual_path;
   if (!file_system_context_->path_manager()->CrackFileSystemPath(
           path, &origin_url, NULL, &virtual_path)) {
-    dispatcher()->DidFail(base::PLATFORM_FILE_ERROR_SECURITY);
+    destructive_dispatcher()->DidFail(base::PLATFORM_FILE_ERROR_SECURITY);
     return false;
   }
   // Any write access is disallowed on the root path.
   if (virtual_path.value().length() == 0 ||
       virtual_path.DirName().value() == virtual_path.value()) {
-    dispatcher()->DidFail(base::PLATFORM_FILE_ERROR_SECURITY);
+    destructive_dispatcher()->DidFail(base::PLATFORM_FILE_ERROR_SECURITY);
     return false;
   }
   if (create && file_system_context_->path_manager()->IsRestrictedFileName(
           path.BaseName())) {
-    dispatcher()->DidFail(base::PLATFORM_FILE_ERROR_SECURITY);
+    destructive_dispatcher()->DidFail(base::PLATFORM_FILE_ERROR_SECURITY);
     return false;
   }
   // TODO(kinuko): For operations with kUnknownSize we'll eventually
   // need to resolve what amount of size it's going to write.
   if (!file_system_context_->quota_manager()->CheckOriginQuota(
           origin_url, growth)) {
-    dispatcher()->DidFail(base::PLATFORM_FILE_ERROR_NO_SPACE);
+    destructive_dispatcher()->DidFail(base::PLATFORM_FILE_ERROR_NO_SPACE);
     return false;
   }
   return true;
@@ -175,7 +175,7 @@ bool SandboxedFileSystemOperation::CheckIfFilePathIsSafe(
     const FilePath& path) {
   if (file_system_context_->path_manager()->IsRestrictedFileName(
           path.BaseName())) {
-    dispatcher()->DidFail(base::PLATFORM_FILE_ERROR_SECURITY);
+    destructive_dispatcher()->DidFail(base::PLATFORM_FILE_ERROR_SECURITY);
     return false;
   }
   return true;