Code cleanup (mostly io lib and some http lib).

runtime/include/dart_api.h

 /*
  * Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
  * for details. All rights reserved. Use of this source code is governed by a
  * BSD-style license that can be found in the LICENSE file.
  */
 
 #ifndef INCLUDE_DART_API_H_
 #define INCLUDE_DART_API_H_
 
 /** \mainpage Dart Embedding API Reference
@@ skipping 284 matching lines @@
  *
  * \param exception An instance of a Dart object to be thrown.
  */
 DART_EXPORT Dart_Handle Dart_NewUnhandledExceptionError(Dart_Handle exception);
 
 /**
  * Propagates an error.
  *
  * If the provided handle is an unhandled exception error, this
  * function will cause the unhandled exception to be rethrown.  This
- * will proceeed in the standard way, walking up Dart frames until an
+ * will proceed in the standard way, walking up Dart frames until an
  * appropriate 'catch' block is found, executing 'finally' blocks,
  * etc.
  *
  * If the error is not an unhandled exception error, we will unwind
  * the stack to the next C frame.  Intervening Dart frames will be
  * discarded; specifically, 'finally' blocks will not execute.  This
  * is the standard way that compilation errors (and the like) are
  * handled by the Dart runtime.
  *
  * In either case, when an error is propagated any current scopes
  * created by Dart_EnterScope will be exited.
  *
- * See the additonal discussion under "Propagating Errors" at the
+ * See the additional discussion under "Propagating Errors" at the
  * beginning of this file.
  *
  * \param An error handle (See Dart_IsError)
  *
  * \return On success, this function does not return.  On failure, an
  *   error handle is returned.
  */
 DART_EXPORT Dart_Handle Dart_PropagateError(Dart_Handle handle);
 /* TODO(turnidge): Should this really return an error handle? */
 /* Consider just terminating. */
@@ skipping 1612 matching lines @@
  */
 
 /*
  * TODO(turnidge): Remove these functions from the api and replace all
  * uses with Dart_NewUnhandledExceptionError. */
 
 /**
  * Throws an exception.
  *
  * This function causes a Dart language exception to be thrown. This
- * will proceeed in the standard way, walking up Dart frames until an
+ * will proceed in the standard way, walking up Dart frames until an
  * appropriate 'catch' block is found, executing 'finally' blocks,
  * etc.
  *
  * If successful, this function does not return. Note that this means
  * that the destructors of any stack-allocated C++ objects will not be
  * called. If there are no Dart frames on the stack, an error occurs.
  *
  * \return An error handle if the exception was not thrown.
  *   Otherwise the function does not return.
  */
@@ skipping 425 matching lines @@
  *
  * \param object An object.
  * \param peer A value to store in the peer field.
  *
  * \return Returns an error if 'object' is a subtype of Null, num, or
  *   bool.
  */
 DART_EXPORT Dart_Handle Dart_SetPeer(Dart_Handle object, void* peer);
 
 #endif  /* INCLUDE_DART_API_H_ */  /* NOLINT */