Move navigations with POST or referrer to the shell.

components/view_manager/public/interfaces/view_manager.mojom

Index: components/view_manager/public/interfaces/view_manager.mojom
diff --git a/components/view_manager/public/interfaces/view_manager.mojom b/components/view_manager/public/interfaces/view_manager.mojom
index 77b44740001277a58457fea17bdcb378fab41241..8013b3c5d92a678ffefe26e2133112f5cf16f046 100644
--- a/components/view_manager/public/interfaces/view_manager.mojom
+++ b/components/view_manager/public/interfaces/view_manager.mojom
@@ -8,6 +8,7 @@ import "components/surfaces/public/interfaces/surface_id.mojom";
 import "components/view_manager/public/interfaces/native_viewport.mojom";
 import "components/view_manager/public/interfaces/view_manager_constants.mojom";
 import "mojo/application/public/interfaces/service_provider.mojom";
+import "network/public/interfaces/url_loader.mojom";
 import "ui/mojo/events/input_events.mojom";
 import "ui/mojo/geometry/geometry.mojom";
 
@@ -108,8 +109,8 @@ interface ViewManagerService {
   // A connection may grant access to a view from another connection by way of
   // the embed functions. There are two variants of this call:
   //
-  // . EmbedUrl: the ViewManager connects to the app at the supplied url and
-  //   asks it for a ViewManagerClient.
+  // . EmbedRequest: the ViewManager connects to the app at the supplied request
+  //   and asks it for a ViewManagerClient.
   // . With the second variant a ViewManagerClient is directly supplied.
   //
   // In both cases the new ViewManagerClient is configured with a root of
@@ -137,10 +138,10 @@ interface ViewManagerService {
   // if a different app is subsequently embedded at |view_id| the
   // ServiceProvider connections to its client in the embedded app and any
   // services it provided are not broken and continue to be valid.
-  EmbedUrl(string url,
-           uint32 view_id,
-           ServiceProvider&? services,
-           ServiceProvider? exposed_services) => (bool success);
+  EmbedRequest(URLRequest request,
+               uint32 view_id,
+               ServiceProvider&? services,
+               ServiceProvider? exposed_services) => (bool success);
   Embed(uint32 view_id, ViewManagerClient client) => (bool success);
 
   SetFocus(uint32 view_id) => (bool success);