Move CompilerDriver to dex2oat/.

Also DexToDexCompiler, QuickCompilerCallbacks and tests.

aosp_taimen-userdebug:
 - before:
   lib64/libart-compiler.so: 3112344
   lib/libart-compiler.so: 2312908
   bin/dex2oat: 563176
 - after:
   lib64/libart-compiler.so: 2986720 (-123KiB)
   lib/libart-compiler.so: 2219852 (-91KiB)
   bin/dex2oat: 635832 (+71KiB)

Test: m test-art-host-gtest
Test: testrunner.py --host --optimizing --jit
Change-Id: I36e63b83dff1d5c731d05de27d3663cfc81de6ad
diff --git a/dex2oat/dex/quick_compiler_callbacks.h b/dex2oat/dex/quick_compiler_callbacks.h
new file mode 100644
index 0000000..578a1f5
--- /dev/null
+++ b/dex2oat/dex/quick_compiler_callbacks.h
@@ -0,0 +1,81 @@
+/*
+ * Copyright (C) 2011 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ART_DEX2OAT_DEX_QUICK_COMPILER_CALLBACKS_H_
+#define ART_DEX2OAT_DEX_QUICK_COMPILER_CALLBACKS_H_
+
+#include "compiler_callbacks.h"
+#include "verifier/verifier_deps.h"
+
+namespace art {
+
+class CompilerDriver;
+class DexFile;
+class VerificationResults;
+
+class QuickCompilerCallbacks final : public CompilerCallbacks {
+ public:
+  explicit QuickCompilerCallbacks(CompilerCallbacks::CallbackMode mode)
+      : CompilerCallbacks(mode), dex_files_(nullptr) {}
+
+  ~QuickCompilerCallbacks() { }
+
+  void MethodVerified(verifier::MethodVerifier* verifier)
+      REQUIRES_SHARED(Locks::mutator_lock_) override;
+
+  void ClassRejected(ClassReference ref) override;
+
+  verifier::VerifierDeps* GetVerifierDeps() const override {
+    return verifier_deps_.get();
+  }
+
+  void SetVerifierDeps(verifier::VerifierDeps* deps) override {
+    verifier_deps_.reset(deps);
+  }
+
+  void SetVerificationResults(VerificationResults* verification_results) {
+    verification_results_ = verification_results;
+  }
+
+  ClassStatus GetPreviousClassState(ClassReference ref) override;
+
+  void SetDoesClassUnloading(bool does_class_unloading, CompilerDriver* compiler_driver)
+      override {
+    does_class_unloading_ = does_class_unloading;
+    compiler_driver_ = compiler_driver;
+    DCHECK(!does_class_unloading || compiler_driver_ != nullptr);
+  }
+
+  void UpdateClassState(ClassReference ref, ClassStatus state) override;
+
+  bool CanUseOatStatusForVerification(mirror::Class* klass) override
+      REQUIRES_SHARED(Locks::mutator_lock_);
+
+  void SetDexFiles(const std::vector<const DexFile*>* dex_files) {
+    dex_files_ = dex_files;
+  }
+
+ private:
+  VerificationResults* verification_results_ = nullptr;
+  bool does_class_unloading_ = false;
+  CompilerDriver* compiler_driver_ = nullptr;
+  std::unique_ptr<verifier::VerifierDeps> verifier_deps_;
+  const std::vector<const DexFile*>* dex_files_;
+};
+
+}  // namespace art
+
+#endif  // ART_DEX2OAT_DEX_QUICK_COMPILER_CALLBACKS_H_