Convert std::wstring encoding names to std::string in a bunch of files.

chrome/common/render_messages_internal.h

Index: chrome/common/render_messages_internal.h
diff --git a/chrome/common/render_messages_internal.h b/chrome/common/render_messages_internal.h
index a624b47b2d4d98ed02e049476e9c022632b2434d..293ce43625f91d9f82d9c2a925062fb884284e0d 100644
--- a/chrome/common/render_messages_internal.h
+++ b/chrome/common/render_messages_internal.h
@@ -315,7 +315,7 @@ IPC_BEGIN_MESSAGES(View)
 
   // Change encoding of page in the renderer.
   IPC_MESSAGE_ROUTED1(ViewMsg_SetPageEncoding,
-                      std::wstring /*new encoding name*/)
+                      std::string /*new encoding name*/)
 
   // Requests the renderer to reserve a range of page ids.
   IPC_MESSAGE_ROUTED1(ViewMsg_ReservePageIDRange,
@@ -798,7 +798,7 @@ IPC_BEGIN_MESSAGES(ViewHost)
   // Change the encoding name of the page in UI when the page has detected
   // proper encoding name.
   IPC_MESSAGE_ROUTED1(ViewHostMsg_UpdateEncoding,
-                      std::wstring /* new encoding name */)
+                      std::string /* new encoding name */)
 
   // Notifies the browser that we want to show a destination url for a potential
   // action (e.g. when the user is hovering over a link).