Move compiler code out of method verifier.

We want to detect small methods for inlining at the end of
the method verification. Instead of adding more compiler
code to the runtime, we create a callback from the runtime
into the compiler, so that we can keep the code there.
Additionally, we move the compiler-related code that was
already in the method verifier to the compiler since it
doesn't really belong to the runtime in the first place.

Change-Id: I708ca13227c809e07917ff3879a89722017e83a9
diff --git a/runtime/compiler_callbacks.h b/runtime/compiler_callbacks.h
new file mode 100644
index 0000000..9045f3a
--- /dev/null
+++ b/runtime/compiler_callbacks.h
@@ -0,0 +1,44 @@
+/*
+ * Copyright (C) 2013 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_RUNTIME_COMPILER_CALLBACKS_H_
+#define ART_RUNTIME_COMPILER_CALLBACKS_H_
+
+#include "class_reference.h"
+
+namespace art {
+
+namespace verifier {
+
+class MethodVerifier;
+
+}  // namespace verifier
+
+class CompilerCallbacks {
+  public:
+    virtual ~CompilerCallbacks() { }
+
+    virtual bool MethodVerified(verifier::MethodVerifier* verifier)
+        SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) = 0;
+    virtual void ClassRejected(ClassReference ref) = 0;
+
+  protected:
+    CompilerCallbacks() { }
+};
+
+}  // namespace art
+
+#endif  // ART_RUNTIME_COMPILER_CALLBACKS_H_