[DevTools] Switch remote locations to Target domain.

chrome/browser/android/devtools_manager_delegate_android.cc

Index: chrome/browser/android/devtools_manager_delegate_android.cc
diff --git a/chrome/browser/android/devtools_manager_delegate_android.cc b/chrome/browser/android/devtools_manager_delegate_android.cc
index 705eb982a23ab9729ad8dbf0491ef25f612522be..d8a1a0a1d05e9080823447f4349d63fb4fd0a1f6 100644
--- a/chrome/browser/android/devtools_manager_delegate_android.cc
+++ b/chrome/browser/android/devtools_manager_delegate_android.cc
@@ -160,9 +160,11 @@ class TabProxyDelegate : public content::DevToolsExternalAgentProxyDelegate,
 
 DevToolsManagerDelegateAndroid::DevToolsManagerDelegateAndroid()
     : network_protocol_handler_(new DevToolsNetworkProtocolHandler()) {
+  content::DevToolsAgentHost::AddObserver(this);
 }
 
 DevToolsManagerDelegateAndroid::~DevToolsManagerDelegateAndroid() {
+  content::DevToolsAgentHost::RemoveObserver(this);
 }
 
 base::DictionaryValue* DevToolsManagerDelegateAndroid::HandleCommand(