Use the tonic namespace for tonic + resulting build fixes

tonic/float32_list.cc

 // Copyright 2015 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/logging.h"
 #include "tonic/dart_error.h"
 #include "tonic/float32_list.h"
 
-namespace blink {
+namespace tonic {
 
 Float32List::Float32List(Dart_Handle list)
     : data_(nullptr), num_elements_(0), dart_handle_(list) {
   if (Dart_IsNull(list))
     return;
 
   Dart_TypedData_Type type;
   Dart_TypedDataAcquireData(
       list, &type, reinterpret_cast<void**>(&data_), &num_elements_);
   DCHECK(!LogIfError(list));
@@ skipping 17 matching lines @@
     Dart_NativeArguments args,
     int index,
     Dart_Handle& exception) {
   Dart_Handle list = Dart_GetNativeArgument(args, index);
   DCHECK(!LogIfError(list));
 
   Float32List result(list);
   return result;
 }
 
-} // namespace blink
+} // namespace tonic