Create a RegisterViewAssociate method in ViewManager

services/ui/launcher/launcher_app.cc

Index: services/ui/launcher/launcher_app.cc
diff --git a/services/ui/launcher/launcher_app.cc b/services/ui/launcher/launcher_app.cc
index cc140a791ec61d4837db7078b768255ae3e58d6d..7b4ef84387885e9e984b3c1c5c09283b480794a2 100644
--- a/services/ui/launcher/launcher_app.cc
+++ b/services/ui/launcher/launcher_app.cc
@@ -32,7 +32,8 @@ void LauncherApp::Initialize(mojo::ApplicationImpl* app_impl) {
   TRACE_EVENT0("launcher", __func__);
 
   for (size_t i = 0; i < command_line->GetArgs().size(); ++i) {
-    Launch(command_line->GetArgs()[i]);
+    Launch(command_line->GetArgs()[i],
+           command_line->GetSwitchValueASCII("view_associate_urls"));

[jeffbrown, 2016/05/18 18:07:16]

It might be better to split the string here so that the Launch method takes
std::vector<std::string>.

[mikejurka, 2016/05/18 19:09:10]

Doing that would require a conversion of a std::vector (which SplitString
returns) to a mojo::Array, and then potentially back again.

Instead I did it in the constructor of LaunchInstance, but kept the parameter as
a string.

   }
 }
 
@@ -49,11 +50,13 @@ bool LauncherApp::ConfigureIncomingConnection(
   return true;
 }
 
-void LauncherApp::Launch(const mojo::String& application_url) {
+void LauncherApp::Launch(const mojo::String& application_url,
+                         const mojo::String& view_associate_urls) {
   uint32_t next_id = next_id_++;
-  std::unique_ptr<LaunchInstance> instance(new LaunchInstance(
-      app_impl_, application_url, base::Bind(&LauncherApp::OnLaunchTermination,
-                                             base::Unretained(this), next_id)));
+  std::unique_ptr<LaunchInstance> instance(
+      new LaunchInstance(app_impl_, application_url, view_associate_urls,
+                         base::Bind(&LauncherApp::OnLaunchTermination,
+                                    base::Unretained(this), next_id)));
   instance->Launch();
   launch_instances_.emplace(next_id, std::move(instance));
 }