Fix typos in include/*.h inline documentation.

include/v8-profiler.h

 // Copyright 2010 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 188 matching lines @@
    */
   static void DeleteAllProfiles();
 };
 
 
 class HeapGraphNode;
 
 
 /**
  * HeapSnapshotEdge represents a directed connection between heap
- * graph nodes: from retaners to retained nodes.
+ * graph nodes: from retainers to retained nodes.
  */
 class V8EXPORT HeapGraphEdge {
  public:
   enum Type {
     kContextVariable = 0,  // A variable from a function context.
     kElement = 1,          // An element of an array.
     kProperty = 2,         // A named object property.
     kInternal = 3,         // A link that can't be accessed from JS,
                            // thus, its name isn't a real property name
                            // (e.g. parts of a ConsString).
@@ skipping 130 matching lines @@
    * Deletes the snapshot and removes it from HeapProfiler's list.
    * All pointers to nodes, edges and paths previously returned become
    * invalid.
    */
   void Delete();
 
   /**
    * Prepare a serialized representation of the snapshot. The result
    * is written into the stream provided in chunks of specified size.
    * The total length of the serialized snapshot is unknown in
-   * advance, it is can be roughly equal to JS heap size (that means,
+   * advance, it can be roughly equal to JS heap size (that means,
    * it can be really big - tens of megabytes).
    *
    * For the JSON format, heap contents are represented as an object
    * with the following structure:
    *
    *  {
    *    snapshot: {title: "...", uid: nnn},
    *    nodes: [
    *      meta-info (JSON string),
    *      nodes themselves
@@ skipping 125 matching lines @@
 };
 
 
 }  // namespace v8
 
 
 #undef V8EXPORT
 
 
 #endif  // V8_V8_PROFILER_H_