fix spelling of comments

chrome/browser/renderer_host/browser_render_process_host.cc

 // 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.
 
 // Represents the browser side of the browser <--> renderer communication
 // channel. There will be one RenderProcessHost per renderer process.
 
 #include "chrome/browser/renderer_host/browser_render_process_host.h"
 
 #include <algorithm>
@@ skipping 595 matching lines @@
   command_line->AppendSwitchASCII(switches::kProcessType,
       extension_process_ ? switches::kExtensionProcess :
                            switches::kRendererProcess);
 
   if (logging::DialogsAreSuppressed())
     command_line->AppendSwitch(switches::kNoErrorDialogs);
 
   if (accessibility_enabled_)
     command_line->AppendSwitch(switches::kEnableAccessibility);
 
-  // Now send any options from our own command line we want to propogate.
+  // Now send any options from our own command line we want to propagate.
   const CommandLine& browser_command_line = *CommandLine::ForCurrentProcess();
   PropagateBrowserCommandLineToRenderer(browser_command_line, command_line);
 
   // Pass on the browser locale.
   const std::string locale = g_browser_process->GetApplicationLocale();
   command_line->AppendSwitchASCII(switches::kLang, locale);
 
   // If we run base::FieldTrials, we want to pass to their state to the
   // renderer so that it can act in accordance with each state, or record
   // histograms relating to the base::FieldTrial states.
@@ skipping 680 matching lines @@
     IPC::PlatformFileForTransit file;
 #if defined(OS_POSIX)
     file = base::FileDescriptor(model_file, false);
 #elif defined(OS_WIN)
     ::DuplicateHandle(::GetCurrentProcess(), model_file, GetHandle(), &file, 0,
                       false, DUPLICATE_SAME_ACCESS);
 #endif
     Send(new ViewMsg_SetPhishingModel(file));
   }
 }