[Courgette] Simple AssemblyProgram and Disassembler cleanups.

courgette/disassembler_elf_32.cc

Index: courgette/disassembler_elf_32.cc
diff --git a/courgette/disassembler_elf_32.cc b/courgette/disassembler_elf_32.cc
index a668401ba06287fbf2788fcd799da104eb70755d..2d257540b1d4b4c6c2391924262a117f4484331f 100644
--- a/courgette/disassembler_elf_32.cc
+++ b/courgette/disassembler_elf_32.cc
@@ -164,23 +164,20 @@ bool DisassemblerElf32::ParseHeader() {
   return Good();
 }
 
-bool DisassemblerElf32::Disassemble(AssemblyProgram* target) {
+bool DisassemblerElf32::Disassemble(AssemblyProgram* program) {
   if (!ok())
     return false;
 
-  // The Image Base is always 0 for ELF Executables
-  target->set_image_base(0);
-
   if (!ParseAbs32Relocs())
     return false;
 
   if (!ParseRel32RelocsFromSections())  // Does not sort rel32 locations.
     return false;
 
-  PrecomputeLabels(target);
-  RemoveUnusedRel32Locations(target);
+  PrecomputeLabels(program);
+  RemoveUnusedRel32Locations(program);
 
-  if (!target->GenerateInstructions(
+  if (!program->GenerateInstructions(
           base::Bind(&DisassemblerElf32::ParseFile, base::Unretained(this)))) {
     return false;
   }
@@ -192,7 +189,7 @@ bool DisassemblerElf32::Disassemble(AssemblyProgram* target) {
   DCHECK(rel32_locations_.empty() ||
          rel32_locations_.back()->rva() != kUnassignedRVA);
 
-  target->DefaultAssignIndexes();
+  program->DefaultAssignIndexes();
   return true;
 }