Move dart_debugger into tonic and use it in mojo dart controller

mojo/dart/embedder/dart_controller.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "base/callback.h"
 #include "base/files/file_util.h"
 #include "base/logging.h"
 #include "base/path_service.h"
 #include "base/rand_util.h"
 #include "base/sys_info.h"
 #include "dart/runtime/include/dart_api.h"
 #include "dart/runtime/include/dart_native_api.h"
 #include "mojo/dart/embedder/builtin.h"
 #include "mojo/dart/embedder/dart_controller.h"
-#include "mojo/dart/embedder/dart_debugger.h"
 #include "mojo/dart/embedder/dart_state.h"
 #include "mojo/dart/embedder/vmservice.h"
 #include "mojo/public/c/system/core.h"
+#include "tonic/dart_debugger.h"
 
 namespace mojo {
 namespace dart {
 
 extern const uint8_t* vm_isolate_snapshot_buffer;
 extern const uint8_t* isolate_snapshot_buffer;
 
 const char* kDartScheme = "dart:";
 const char* kAsyncLibURL = "dart:async";
 const char* kInternalLibURL = "dart:_internal";
@@ skipping 526 matching lines @@
   args[0] = "--worker-timeout-millis=0";
 
   for (int i = 0; i < arguments_count; ++i) {
     args[i + 1] = arguments[i];
   }
 
   bool result = Dart_SetVMFlags(kNumArgs, args);
   CHECK(result);
 
   // This should be called before calling Dart_Initialize.
-  DartDebugger::InitDebugger();
+  tonic::DartDebugger::InitDebugger();
 
   result = Dart_Initialize(vm_isolate_snapshot_buffer,
                            IsolateCreateCallback,
                            nullptr,  // Isolate interrupt callback.
                            UnhandledExceptionCallback,
                            IsolateShutdownCallback,
                            // File IO callbacks.
                            nullptr, nullptr, nullptr, nullptr,
                            entropy);
   CHECK(result);
@@ skipping 161 matching lines @@
 
 void DartController::Shutdown() {
   StopHandleWatcherIsolate();
   Dart_Cleanup();
   service_isolate_running_ = false;
   initialized_ = false;
 }
 
 }  // namespace apps
 }  // namespace mojo