Change FrameSize to FrameSizeInBytes.

Avoid confusion that it's in words.

Change-Id: Ic7bfa3e00eec4ba49a4abf351913625e33529846
diff --git a/src/jni_compiler.cc b/src/jni_compiler.cc
index 9dceed4..b03a016 100644
--- a/src/jni_compiler.cc
+++ b/src/jni_compiler.cc
@@ -296,8 +296,8 @@
   jni_asm->FinalizeInstructions(code);
   native_method->SetCode(reinterpret_cast<byte*>(code.pointer()), cs,
       jni_asm->GetInstructionSet());
-  native_method->SetFrameSize(frame_size);
-  native_method->SetReturnPcOffset(jni_conv.ReturnPcOffset());
+  native_method->SetFrameSizeInBytes(frame_size);
+  native_method->SetReturnPcOffsetInBytes(jni_conv.ReturnPcOffset());
 }
 
 // Copy a single parameter from the managed to the JNI calling convention