Fixed not working inspector in case of Remote Target

chrome/browser/devtools/device/devtools_device_discovery.cc

Index: chrome/browser/devtools/device/devtools_device_discovery.cc
diff --git a/chrome/browser/devtools/device/devtools_device_discovery.cc b/chrome/browser/devtools/device/devtools_device_discovery.cc
index 432f3dd684e20e4d4fb6d3e1d70d3ef4ac832630..630b1e1341522c9533f59f49a42cf67067a64003 100644
--- a/chrome/browser/devtools/device/devtools_device_discovery.cc
+++ b/chrome/browser/devtools/device/devtools_device_discovery.cc
@@ -252,6 +252,9 @@ AgentHostDelegate::AgentHostDelegate(
       socket_opened_(false),
       agent_host_(nullptr),
       proxy_(nullptr) {
+    if (!GURL(frontend_url_).has_scheme() && value) {
+        frontend_url_ = GetStringProperty(value, "Proxy-devtoolsFrontendUrl");
+    }
 }
 
 AgentHostDelegate::~AgentHostDelegate() {
@@ -458,6 +461,10 @@ void DevToolsDeviceDiscovery::DiscoveryRequest::ReceivedVersion(
       else
         browser->version_ = browser_name;
     }
+    std::string webkit_version;
+    if (dict->GetString("WebKit-Version", &webkit_version)) {
+      browser->webkit_version_ = webkit_version;
+    }
     std::string package;
     if (dict->GetString("Android-Package", &package)) {
       browser->display_name_ =
@@ -479,9 +486,14 @@ void DevToolsDeviceDiscovery::DiscoveryRequest::ReceivedPages(
   if (value && value->GetAsList(&list_value)) {
     for (const auto& page_value : *list_value) {
       base::DictionaryValue* dict;
-      if (page_value->GetAsDictionary(&dict))
+      if (page_value->GetAsDictionary(&dict)) {
+        const char kFrontEndURL[] =
+          "http://chrome-devtools-frontend.appspot.com/serve_rev/%s/inspector.html";
+        dict->SetString("Proxy-devtoolsFrontendUrl",
+          base::StringPrintf(kFrontEndURL, browser->WebKitRevision().c_str()));
         browser->pages_.push_back(
             new RemotePage(device, browser->browser_id_, *dict));
+      }
     }
   }
 }
@@ -545,6 +557,15 @@ DevToolsDeviceDiscovery::RemoteBrowser::GetParsedVersion() {
   return result;
 }
 
+std::string DevToolsDeviceDiscovery::RemoteBrowser::WebKitRevision() {
+  std::string webkit_revision;
+  size_t l = webkit_version_.find('@');
+  size_t r = webkit_version_.rfind(')');
+  if (l != std::string::npos && r != std::string::npos && r > l)
+    webkit_revision = webkit_version_.substr(l, r-l);
+  return webkit_revision;
+}
+
 DevToolsDeviceDiscovery::RemoteBrowser::~RemoteBrowser() {
 }