Return unique_ptr from WebClient::CreateWebMainParts()

ios/web/public/web_client.h

Index: ios/web/public/web_client.h
diff --git a/ios/web/public/web_client.h b/ios/web/public/web_client.h
index a852a760058eaaa86d52960f3a24185b4aca0fb7..7e59485ae13a0012ba312775d74793d47712aa89 100644
--- a/ios/web/public/web_client.h
+++ b/ios/web/public/web_client.h
@@ -12,6 +12,7 @@
 #include "base/strings/string16.h"
 #include "base/strings/string_piece.h"
 #include "base/task_scheduler/task_scheduler.h"
+#include "ios/web/public/app/web_main_parts.h"

[Eugene But (OOO till 7-30), 2017/01/20 22:11:41]

There is no need for include. Having predeclaration is fine.

[michaeldo, 2017/01/23 17:30:54]

Done.

 #include "ui/base/layout.h"
 #include "url/url_util.h"
 
@@ -34,7 +35,6 @@ namespace web {
 class BrowserState;
 class BrowserURLRewriter;
 class WebClient;
-class WebMainParts;
 class WebState;
 
 // Setter and getter for the client.  The client should be set early, before any
@@ -50,7 +50,7 @@ class WebClient {
 
   // Allows the embedder to set a custom WebMainParts implementation for the
   // browser startup code.
-  virtual WebMainParts* CreateWebMainParts();
+  virtual std::unique_ptr<WebMainParts> CreateWebMainParts();
 
   // Gives the embedder a chance to perform tasks before a web view is created.
   virtual void PreWebViewCreation() const {}