Basic: import OwningPtr<> into clang namespace

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@149798 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Basic/FileManager.cpp b/lib/Basic/FileManager.cpp
index 5d352fd..267db48 100644
--- a/lib/Basic/FileManager.cpp
+++ b/lib/Basic/FileManager.cpp
@@ -484,7 +484,7 @@
 
 llvm::MemoryBuffer *FileManager::
 getBufferForFile(const FileEntry *Entry, std::string *ErrorStr) {
-  llvm::OwningPtr<llvm::MemoryBuffer> Result;
+  OwningPtr<llvm::MemoryBuffer> Result;
   llvm::error_code ec;
 
   const char *Filename = Entry->getName();
@@ -519,7 +519,7 @@
 
 llvm::MemoryBuffer *FileManager::
 getBufferForFile(StringRef Filename, std::string *ErrorStr) {
-  llvm::OwningPtr<llvm::MemoryBuffer> Result;
+  OwningPtr<llvm::MemoryBuffer> Result;
   llvm::error_code ec;
   if (FileSystemOpts.WorkingDir.empty()) {
     ec = llvm::MemoryBuffer::getFile(Filename, Result);