Structural improvements for request handling (issue #1044)

- Add new CefRequestContext and CefRequestContextHandler classes.
- Add CefRequestContext argument to CefBrowserHost static factory methods.
- Move GetCookieManager from CefRequestHandler to CefRequestContextHandler.
- Use BrowserContext as the root proxy object for network requests.
- Move accessors for CefBrowserMainParts members from CefContext to CefContentBrowserClient.

git-svn-id: https://chromiumembedded.googlecode.com/svn/trunk@1424 5089003a-bbd8-11dd-ad1f-f1f9622dbc98

libcef/browser/url_request_context_proxy.h

@@ -6,6 +6,8 @@
 #define CEF_LIBCEF_BROWSER_URL_REQUEST_CONTEXT_PROXY_H_
 #pragma once
 
+#include "include/cef_request_context_handler.h"
+
 #include "base/memory/scoped_ptr.h"
 #include "net/url_request/url_request_context.h"
 
@@ -21,7 +23,7 @@ class CefURLRequestContextProxy : public net::URLRequestContext {
   explicit CefURLRequestContextProxy(net::URLRequestContextGetter* parent);
   virtual ~CefURLRequestContextProxy();
 
-  void Initialize(CefBrowserHostImpl* browser);
+  void Initialize(CefRefPtr<CefRequestContextHandler> handler);
 
   // We may try to delete this proxy multiple times if URLRequests are still
   // pending. Keep track of the number of tries so that they don't become