ART: Some runtime cleanup

Use an enum for the compiler-callback mode.

Refactor and remove some unnecessary includes in runtime.h.

Change-Id: If2245fa470171311b8e05b677cf6bb28f209585a
diff --git a/compiler/common_compiler_test.cc b/compiler/common_compiler_test.cc
index d506cc2..257406a 100644
--- a/compiler/common_compiler_test.cc
+++ b/compiler/common_compiler_test.cc
@@ -179,7 +179,7 @@
   method_inliner_map_.reset(new DexFileToMethodInlinerMap);
   callbacks_.reset(new QuickCompilerCallbacks(verification_results_.get(),
                                               method_inliner_map_.get(),
-                                              false));
+                                              CompilerCallbacks::CallbackMode::kCompileApp));
   options->push_back(std::make_pair("compilercallbacks", callbacks_.get()));
 }
 
diff --git a/compiler/dex/quick_compiler_callbacks.h b/compiler/dex/quick_compiler_callbacks.h
index 56706e3..d692d26 100644
--- a/compiler/dex/quick_compiler_callbacks.h
+++ b/compiler/dex/quick_compiler_callbacks.h
@@ -28,8 +28,8 @@
   public:
     QuickCompilerCallbacks(VerificationResults* verification_results,
                            DexFileToMethodInlinerMap* method_inliner_map,
-                           bool boot_image)
-        : CompilerCallbacks(boot_image), verification_results_(verification_results),
+                           CompilerCallbacks::CallbackMode mode)
+        : CompilerCallbacks(mode), verification_results_(verification_results),
           method_inliner_map_(method_inliner_map) {
       CHECK(verification_results != nullptr);
       CHECK(method_inliner_map != nullptr);
diff --git a/compiler/jit/jit_compiler.cc b/compiler/jit/jit_compiler.cc
index d034736..df5d5cc 100644
--- a/compiler/jit/jit_compiler.cc
+++ b/compiler/jit/jit_compiler.cc
@@ -90,7 +90,7 @@
   method_inliner_map_.reset(new DexFileToMethodInlinerMap);
   callbacks_.reset(new QuickCompilerCallbacks(verification_results_.get(),
                                               method_inliner_map_.get(),
-                                              false));
+                                              CompilerCallbacks::CallbackMode::kCompileApp));
   compiler_driver_.reset(new CompilerDriver(
       compiler_options_.get(), verification_results_.get(), method_inliner_map_.get(),
       Compiler::kQuick, instruction_set, instruction_set_features_.get(), false,
diff --git a/compiler/oat_test.cc b/compiler/oat_test.cc
index 440c1b6..d59ad6c 100644
--- a/compiler/oat_test.cc
+++ b/compiler/oat_test.cc
@@ -87,7 +87,7 @@
   method_inliner_map_.reset(new DexFileToMethodInlinerMap);
   callbacks_.reset(new QuickCompilerCallbacks(verification_results_.get(),
                                               method_inliner_map_.get(),
-                                              false));
+                                              CompilerCallbacks::CallbackMode::kCompileApp));
   timer_.reset(new CumulativeLogger("Compilation times"));
   compiler_driver_.reset(new CompilerDriver(compiler_options_.get(),
                                             verification_results_.get(),