[DevTools] Move subtargets functionality from ServiceWorker to Target domain.

content/browser/devtools/render_frame_devtools_agent_host.cc

Index: content/browser/devtools/render_frame_devtools_agent_host.cc
diff --git a/content/browser/devtools/render_frame_devtools_agent_host.cc b/content/browser/devtools/render_frame_devtools_agent_host.cc
index c2d13d65aa25319b23562ad25c325714aa6ad509..789e0193a7694bc519d21a3a4062d2c6081c9052 100644
--- a/content/browser/devtools/render_frame_devtools_agent_host.cc
+++ b/content/browser/devtools/render_frame_devtools_agent_host.cc
@@ -29,6 +29,7 @@
 #include "content/browser/devtools/protocol/security_handler.h"
 #include "content/browser/devtools/protocol/service_worker_handler.h"
 #include "content/browser/devtools/protocol/storage_handler.h"
+#include "content/browser/devtools/protocol/target_handler.h"
 #include "content/browser/devtools/protocol/tracing_handler.h"
 #include "content/browser/frame_host/navigation_handle_impl.h"
 #include "content/browser/frame_host/render_frame_host_impl.h"
@@ -385,6 +386,7 @@ RenderFrameDevToolsAgentHost::RenderFrameDevToolsAgentHost(
       service_worker_handler_(
           new devtools::service_worker::ServiceWorkerHandler()),
       storage_handler_(new devtools::storage::StorageHandler()),
+      target_handler_(new devtools::target::TargetHandler()),
       tracing_handler_(new devtools::tracing::TracingHandler(
           devtools::tracing::TracingHandler::Renderer,
           host->GetFrameTreeNodeId(),
@@ -405,6 +407,7 @@ RenderFrameDevToolsAgentHost::RenderFrameDevToolsAgentHost(
   dispatcher->SetSchemaHandler(schema_handler_.get());
   dispatcher->SetServiceWorkerHandler(service_worker_handler_.get());
   dispatcher->SetStorageHandler(storage_handler_.get());
+  dispatcher->SetTargetHandler(target_handler_.get());
   dispatcher->SetTracingHandler(tracing_handler_.get());
 
   if (!host->GetParent()) {
@@ -543,6 +546,7 @@ void RenderFrameDevToolsAgentHost::OnClientDetached() {
   if (page_handler_)
     page_handler_->Detached();
   service_worker_handler_->Detached();
+  target_handler_->Detached();
   tracing_handler_->Detached();
   frame_trace_recorder_.reset();
   in_navigation_protocol_message_buffer_.clear();
@@ -605,7 +609,7 @@ void RenderFrameDevToolsAgentHost::DidFinishNavigation(
   DispatchBufferedProtocolMessagesIfNecessary();
 
   if (navigation_handle->HasCommitted())
-    service_worker_handler_->UpdateHosts();
+    target_handler_->UpdateServiceWorkers();
 }
 
 void RenderFrameDevToolsAgentHost::AboutToNavigateRenderFrame(
@@ -774,7 +778,7 @@ void RenderFrameDevToolsAgentHost::DidCommitProvisionalLoadForFrame(
     return;
   if (pending_ && pending_->host() == render_frame_host)
     CommitPending();
-  service_worker_handler_->UpdateHosts();
+  target_handler_->UpdateServiceWorkers();
 }
 
 void RenderFrameDevToolsAgentHost::DidFailProvisionalLoad(
@@ -835,6 +839,7 @@ void RenderFrameDevToolsAgentHost::UpdateProtocolHandlers(
     security_handler_->SetRenderFrameHost(host);
   if (storage_handler_)
     storage_handler_->SetRenderFrameHost(host);
+  target_handler_->SetRenderFrameHost(host);
 }
 
 void RenderFrameDevToolsAgentHost::DisconnectWebContents() {