Refactor Subzero initialization and add a browser callback handler.

src/IceClFlagsExtra.h

Index: src/IceClFlagsExtra.h
diff --git a/src/IceClFlagsExtra.h b/src/IceClFlagsExtra.h
new file mode 100644
index 0000000000000000000000000000000000000000..9346d6e571cb231d3a89c0a775fa8275b6f94b8f
--- /dev/null
+++ b/src/IceClFlagsExtra.h
@@ -0,0 +1,79 @@
+//===- subzero/src/IceClFlagsExtra.h - Extra Cl Flags -----------*- C++ -*-===//
+//
+//                        The Subzero Code Generator
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file declares command line flags primarily used for non-minimal builds.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef SUBZERO_SRC_ICECLFLAGSEXTRA_H
+#define SUBZERO_SRC_ICECLFLAGSEXTRA_H
+
+#include "llvm/IRReader/IRReader.h"
+
+#include "IceDefs.h"
+
+namespace Ice {
+
+class ClFlagsExtra {
+  ClFlagsExtra(const ClFlagsExtra &) = delete;
+  ClFlagsExtra &operator=(const ClFlagsExtra &) = delete;
+
+public:
+  ClFlagsExtra()
+      : AlwaysExitSuccess(false), BuildOnRead(false), GenerateBuildAtts(false),
+        LLVMVerboseErrors(false), InputFileFormat(llvm::LLVMFormat) {}
+
+  bool getAlwaysExitSuccess() const { return AlwaysExitSuccess; }
+  void setAlwaysExitSuccess(bool NewValue) { AlwaysExitSuccess = NewValue; }
+
+  bool getBuildOnRead() const { return BuildOnRead; }
+  void setBuildOnRead(bool NewValue) { BuildOnRead = NewValue; }
+
+  bool getGenerateBuildAtts() const { return GenerateBuildAtts; }
+  void setGenerateBuildAtts(bool NewValue) { GenerateBuildAtts = NewValue; }
+
+  bool getLLVMVerboseErrors() const { return LLVMVerboseErrors; }
+  void setLLVMVerboseErrors(bool NewValue) { LLVMVerboseErrors = NewValue; }
+
+  llvm::NaClFileFormat getInputFileFormat() const { return InputFileFormat; }
+  void setInputFileFormat(llvm::NaClFileFormat NewValue) {
+    InputFileFormat = NewValue;
+  }
+
+  const IceString &getAppName() const { return AppName; }
+  void setAppName(const IceString &NewValue) { AppName = NewValue; }
+
+  const IceString &getIRFilename() const { return IRFilename; }
+  void setIRFilename(const IceString &NewValue) { IRFilename = NewValue; }
+
+  const IceString &getLogFilename() const { return LogFilename; }
+  void setLogFilename(const IceString &NewValue) { LogFilename = NewValue; }
+
+  const IceString &getOutputFilename() const { return OutputFilename; }
+  void setOutputFilename(const IceString &NewValue) {
+    OutputFilename = NewValue;
+  }
+
+private:
+  bool AlwaysExitSuccess;
+  bool BuildOnRead;
+  bool GenerateBuildAtts;
+  bool LLVMVerboseErrors;
+
+  llvm::NaClFileFormat InputFileFormat;
+
+  IceString AppName;
+  IceString IRFilename;
+  IceString LogFilename;
+  IceString OutputFilename;
+};
+
+} // end of namespace Ice
+
+#endif // SUBZERO_SRC_ICECLFLAGSEXTRA_H