Get ClientCertStore through ResourceContext.

android_webview/browser/aw_browser_context.cc

Index: android_webview/browser/aw_browser_context.cc
diff --git a/android_webview/browser/aw_browser_context.cc b/android_webview/browser/aw_browser_context.cc
index 7adc6dd97c3a285cdbfc99cb7b83d2f196e3966e..b0a0d0e23fc129f4c4dc4430de7e80dde577f5ad 100644
--- a/android_webview/browser/aw_browser_context.cc
+++ b/android_webview/browser/aw_browser_context.cc
@@ -26,6 +26,7 @@
 #include "content/public/browser/resource_context.h"
 #include "content/public/browser/storage_partition.h"
 #include "content/public/browser/web_contents.h"
+#include "net/ssl/client_cert_store.h"
 #include "net/url_request/url_request_context.h"
 
 using base::FilePath;
@@ -62,6 +63,9 @@ class AwResourceContext : public content::ResourceContext {
   virtual bool AllowCameraAccess(const GURL& origin) OVERRIDE {
     return false;
   }
+  virtual scoped_ptr<net::ClientCertStore> GetClientCertStore() OVERRIDE {
+    return scoped_ptr<net::ClientCertStore>();
+  }
 
  private:
   net::URLRequestContextGetter* getter_;