Move dex_files_for_oat_file_ to CompilerOptions.

A step toward removing the CompilerDriver dependency from
several classes, including HSharpening and ImageWriter.

Test: m test-art-host-gtest
Test: testrunner.py --host --optimizing
Change-Id: I364ef66511fdf855cb11b12c818a40572b037727
diff --git a/compiler/common_compiler_test.h b/compiler/common_compiler_test.h
index 46b59a3..f070bbb 100644
--- a/compiler/common_compiler_test.h
+++ b/compiler/common_compiler_test.h
@@ -33,6 +33,7 @@
 class CompilerDriver;
 class CompilerOptions;
 class CumulativeLogger;
+class DexFile;
 class ProfileCompilationInfo;
 class VerificationResults;
 
@@ -93,6 +94,8 @@
 
   void UnreserveImageSpace();
 
+  void SetDexFilesForOatFile(const std::vector<const DexFile*>& dex_files);
+
   Compiler::Kind compiler_kind_ = Compiler::kOptimizing;
   std::unique_ptr<CompilerOptions> compiler_options_;
   std::unique_ptr<VerificationResults> verification_results_;