Subzero: Allow overriding command-line args from the browser.

src/IceBrowserCompileServer.h

 //===- subzero/src/IceBrowserCompileServer.h - Browser server ---*- C++ -*-===//
 //
 //                        The Subzero Code Generator
 //
 // This file is distributed under the University of Illinois Open Source
 // License. See LICENSE.TXT for details.
 //
 //===----------------------------------------------------------------------===//
 ///
 /// \file
@@ skipping 32 matching lines @@
 public:
   BrowserCompileServer() : HadError(false) {}
 
   ~BrowserCompileServer() final;
 
   void run() final;
 
   ErrorCode &getErrorCode() final;
 
   /// Parse and set up the flags for compile jobs.
-  void getParsedFlags(uint32_t NumThreads, int argc, char **argv);
+  void getParsedFlags(bool UseNumThreadsFromBrowser, uint32_t NumThreads,
+                      int argc, char **argv);
 
   /// Creates the streams + context and starts the compile thread, handing off
   /// the streams + context.
   void startCompileThread(int OutFD);
 
   /// Call to push more bytes to the current input stream. Returns false on
   /// success and true on error.
   bool pushInputBytes(const void *Data, size_t NumBytes);
 
   /// Notify the input stream of EOF.
@@ skipping 37 matching lines @@
   std::unique_ptr<llvm::raw_fd_ostream> EmitStream;
   std::unique_ptr<StringStream> ErrorStream;
   std::unique_ptr<ELFStreamer> ELFStream;
   std::thread CompileThread;
   std::atomic<bool> HadError;
 };
 
 } // end of namespace Ice
 
 #endif // SUBZERO_SRC_ICEBROWSERCOMPILESERVER_H