DevTools: introduce browser domain for basic target discovery.

content/browser/devtools/site_per_process_devtools_browsertest.cc

Index: content/browser/devtools/site_per_process_devtools_browsertest.cc
diff --git a/content/browser/devtools/site_per_process_devtools_browsertest.cc b/content/browser/devtools/site_per_process_devtools_browsertest.cc
index e3c3cf222bc3cf1cbcb1bb12675ceaebf7e332e2..723fcc4c599fbc16fde11e2e7d6dde264f4a4b93 100644
--- a/content/browser/devtools/site_per_process_devtools_browsertest.cc
+++ b/content/browser/devtools/site_per_process_devtools_browsertest.cc
@@ -123,10 +123,10 @@ IN_PROC_BROWSER_TEST_F(SitePerProcessDevToolsBrowserTest,
   EXPECT_EQ(DevToolsAgentHost::TYPE_WEB_CONTENTS, list[0]->GetType());
   EXPECT_EQ(main_url.spec(), list[0]->GetURL().spec());
   EXPECT_TRUE(child_client.closed());
-  child_host->DetachClient();
+  child_host->DetachClient(&child_client);
   child_host = nullptr;
   EXPECT_FALSE(parent_client.closed());
-  parent_host->DetachClient();
+  parent_host->DetachClient(&parent_client);
   parent_host = nullptr;
 }