Don't embed the dex code in the oat file if dex is uncompressed.

Take uncompressed dex code as a signal that the app wants to
opt into b/63920015.

bug: 63920015
Test: dex2oat_test, 071-dexfile-clean-map

Change-Id: I878e7bb80fc895a2d9aafe81aa7666b86af1f808
diff --git a/compiler/driver/compiler_driver.h b/compiler/driver/compiler_driver.h
index d2141e8..eab15b9 100644
--- a/compiler/driver/compiler_driver.h
+++ b/compiler/driver/compiler_driver.h
@@ -102,13 +102,13 @@
 
   ~CompilerDriver();
 
-  // Set dex files that will be stored in the oat file after being compiled.
+  // Set dex files associated with the oat file being compiled.
   void SetDexFilesForOatFile(const std::vector<const DexFile*>& dex_files);
 
   // Set dex files classpath.
   void SetClasspathDexFiles(const std::vector<const DexFile*>& dex_files);
 
-  // Get dex file that will be stored in the oat file after being compiled.
+  // Get dex files associated with the the oat file being compiled.
   ArrayRef<const DexFile* const> GetDexFilesForOatFile() const {
     return ArrayRef<const DexFile* const>(dex_files_for_oat_file_);
   }
@@ -528,7 +528,7 @@
 
   bool support_boot_image_fixup_;
 
-  // List of dex files that will be stored in the oat file.
+  // List of dex files associates with the oat file.
   std::vector<const DexFile*> dex_files_for_oat_file_;
 
   CompiledMethodStorage compiled_method_storage_;