Update file-level comment for gin::IsolateHolder

gin/public/isolate_holder.h

 // Copyright 2013 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.
 
 #ifndef GIN_PUBLIC_ISOLATE_HOLDER_H_
 #define GIN_PUBLIC_ISOLATE_HOLDER_H_
 
 #include "base/basictypes.h"
 #include "base/memory/scoped_ptr.h"
 #include "gin/gin_export.h"
 #include "v8/include/v8.h"
 
 namespace gin {
 
 class PerIsolateData;
 
 // To embed Gin, first create an instance of IsolateHolder to hold the
 // v8::Isolate in which you will execute JavaScript. You might wish to subclass
-// IsolateHolder if you want to tie more state to the lifetime of the
+// IsolateHolder if you want to tie more state to the lifetime of the isolate.
 //
 // You can use gin in two modes: either gin manages V8, or the gin-embedder
-// manages gin. If gin manages V8, use the IsolateHolder constructor without
-// parameters, otherwise, the gin-embedder needs to create v8::Isolates and
-// pass them to IsolateHolder.
+// manages gin. If gin manages V8, use the IsolateHolder constructor that does
+// not take an v8::Isolate parameter, otherwise, the gin-embedder needs to
+// create v8::Isolates and pass them to IsolateHolder.
 //
 // It is not possible to mix the two.
 class GIN_EXPORT IsolateHolder {
  public:
   // Controls whether or not V8 should only accept strict mode scripts.
   enum ScriptMode {
     kNonStrictMode,
     kStrictMode
   };
 
@@ skipping 10 matching lines @@
   bool isolate_owner_;
   v8::Isolate* isolate_;
   scoped_ptr<PerIsolateData> isolate_data_;
 
   DISALLOW_COPY_AND_ASSIGN(IsolateHolder);
 };
 
 }  // namespace gin
 
 #endif  // GIN_PUBLIC_ISOLATE_HOLDER_H_