Refactor ABCCompilerDriver to allow target-dependent settings.

Change-Id: Ie46a8838c0b911d5dedf82bc09616dcd728c663d
diff --git a/lib/AndroidBitcode/X86ABCCompilerDriver.h b/lib/AndroidBitcode/X86ABCCompilerDriver.h
new file mode 100644
index 0000000..4d76b5f
--- /dev/null
+++ b/lib/AndroidBitcode/X86ABCCompilerDriver.h
@@ -0,0 +1,34 @@
+/*
+ * Copyright 2012, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef BCC_X86_ABC_COMPILER_DRIVER_H
+#define BCC_X86_ABC_COMPILER_DRIVER_H
+
+#include "bcc/AndroidBitcode/ABCCompilerDriver.h"
+
+namespace bcc {
+
+class X86ABCCompilerDriver : public ABCCompilerDriver {
+public:
+  X86ABCCompilerDriver(const std::string &pTriple)
+      : ABCCompilerDriver(pTriple) { }
+
+  virtual ~X86ABCCompilerDriver() { }
+};
+
+} // end namespace bcc
+
+#endif // BCC_X86_ABC_COMPILER_DRIVER_H