DevTools: untangle device discovery request from the devtools android bridge.

content/browser/devtools/devtools_manager_unittest.cc

Index: content/browser/devtools/devtools_manager_unittest.cc
diff --git a/content/browser/devtools/devtools_manager_unittest.cc b/content/browser/devtools/devtools_manager_unittest.cc
index b56f17e352f49a8ad205db1bb0308646e217a2e6..ee35e6b3aac0558e0871c45dd7f575f3b7ef3361 100644
--- a/content/browser/devtools/devtools_manager_unittest.cc
+++ b/content/browser/devtools/devtools_manager_unittest.cc
@@ -240,14 +240,13 @@ class TestExternalAgentDelegate: public DevToolsExternalAgentProxyDelegate {
 
   void Detach() override { recordEvent("Detach"); };
 
-  std::string GetType() override { return ""; }
-  std::string GetTitle() override { return ""; }
-  std::string GetDescription() override { return ""; }
+  std::string GetType() override { return std::string(); }
+  std::string GetTitle() override { return std::string(); }
+  std::string GetDescription() override { return std::string(); }
   GURL GetURL() override { return GURL(); }
   GURL GetFaviconURL() override { return GURL(); }
-
+  std::string GetFrontendURL() override { return std::string(); }
   bool Activate() override { return false; };
-  bool Inspect() override { return false; };
   void Reload() override { };
   bool Close() override { return false; };