[mojo] Mark renderer GetRemoteInterfaces/GetInterfaceProvider deprecated

Since all chromium clients in the renderer now use BrowserInterfaceBroker,
this change marks old methods returning InterfaceProvider* as deprecated.

Bug: 718652

Change-Id: Ie01d60d498e9118f7817ae9a44d2533a848b4b3d
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2020677Reviewed-by: Kinuko Yasuda <kinuko@chromium.org>
Commit-Queue: Oksana Zhuravlova <oksamyt@chromium.org>
Cr-Commit-Position: refs/heads/master@{#735484}

content/public/renderer/render_frame.h

@@ -187,6 +187,7 @@ class CONTENT_EXPORT RenderFrame : public IPC::Listener,
       const std::string& interface_name,
       mojo::ScopedMessagePipeHandle interface_pipe) = 0;
 
+  // DEPRECATED. Please use GetBrowserInterfaceBroker() instead.
   // Returns the InterfaceProvider that this process can use to bind
   // interfaces exposed to it by the application running in this frame.
   virtual service_manager::InterfaceProvider* GetRemoteInterfaces() = 0;

third_party/blink/public/web/web_local_frame_client.h

@@ -192,6 +192,7 @@ class BLINK_EXPORT WebLocalFrameClient {
   // Returns a blame context for attributing work belonging to this frame.
   virtual BlameContext* GetFrameBlameContext() { return nullptr; }
 
+  // DEPRECATED. Please use GetBrowserInterfaceBroker() instead.
   // Returns an InterfaceProvider the frame can use to request interfaces from
   // the browser. This method may not return nullptr.
   virtual service_manager::InterfaceProvider* GetInterfaceProvider();

third_party/blink/renderer/core/execution_context/execution_context.h

@@ -282,6 +282,7 @@ class CORE_EXPORT ExecutionContext : public ContextLifecycleNotifier,
 
   virtual CoreProbeSink* GetProbeSink() { return nullptr; }
 
+  // DEPRECATED. Please use GetBrowserInterfaceBroker() instead.
   virtual service_manager::InterfaceProvider* GetInterfaceProvider() {
     return nullptr;
   }