Get rid of a bunch of view_messages.h includes from chrome by making the TabContentsObserver inte...

chrome/browser/ui/cocoa/applescript/tab_applescript.mm

 // Copyright (c) 2011 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.
 
 #import "chrome/browser/ui/cocoa/applescript/tab_applescript.h"
 
+#import <Carbon/Carbon.h>
+#import <Foundation/NSAppleEventDescriptor.h>
+
 #include "base/file_path.h"
 #include "base/logging.h"
 #import "base/memory/scoped_nsobject.h"
 #include "base/sys_string_conversions.h"
 #include "base/utf_string_conversions.h"
 #include "chrome/browser/printing/print_view_manager.h"
 #include "chrome/browser/sessions/restore_tab_helper.h"
 #include "chrome/browser/sessions/session_id.h"
 #include "chrome/browser/ui/cocoa/applescript/error_applescript.h"
 #include "chrome/browser/ui/tab_contents/tab_contents_wrapper.h"
 #include "chrome/common/url_constants.h"
 #include "content/browser/download/save_package.h"
 #include "content/browser/renderer_host/render_view_host.h"
 #include "content/browser/tab_contents/navigation_controller.h"
 #include "content/browser/tab_contents/navigation_entry.h"
 #include "content/browser/tab_contents/tab_contents_delegate.h"
-#include "content/common/view_messages.h"
 #include "googleurl/src/gurl.h"
 
 @interface AnyResultValue : NSObject {
  @private
   scoped_nsobject<NSAppleEventDescriptor> descriptor;
 }
 - (id)initWithDescriptor:(NSAppleEventDescriptor*)desc;
 - (NSAppleEventDescriptor *)scriptingAnyDescriptor;
 @end
 
@@ skipping 361 matching lines @@
   }
 
   string16 script = base::SysNSStringToUTF16(
       [[command evaluatedArguments] objectForKey:@"javascript"]);
   Value* value = view->ExecuteJavascriptAndGetValue(string16(), script);
   NSAppleEventDescriptor* descriptor = valueToDescriptor(value);
   return [[[AnyResultValue alloc] initWithDescriptor:descriptor] autorelease];
 }
 
 @end