[chromedriver] Add page loading strategy to capabilities

chrome/test/chromedriver/chrome/chrome_impl.cc

Index: chrome/test/chromedriver/chrome/chrome_impl.cc
diff --git a/chrome/test/chromedriver/chrome/chrome_impl.cc b/chrome/test/chromedriver/chrome/chrome_impl.cc
index 28c7728e6a247e3156ea835ad5cfd43c2a3fc1e3..afd6ef550f43eb36144876f8648c78a0ada68c92 100644
--- a/chrome/test/chromedriver/chrome/chrome_impl.cc
+++ b/chrome/test/chromedriver/chrome/chrome_impl.cc
@@ -78,7 +78,7 @@ Status ChromeImpl::GetWebViewIds(std::list<std::string>* web_view_ids) {
         }
         web_views_.push_back(make_linked_ptr(new WebViewImpl(
             view.id, devtools_http_client_->browser_info(), std::move(client),
-            devtools_http_client_->device_metrics())));
+            devtools_http_client_->device_metrics(), page_loading_strategy_)));
       }
     }
   }
@@ -129,6 +129,18 @@ bool ChromeImpl::HasTouchScreen() const {
   return false;
 }
 
+std::string ChromeImpl::GetPageLoadingStrategy() const {
+  return page_loading_strategy_;
+}
+
+Status ChromeImpl::SetPageLoadingStrategy(std::string strategy) {
+  if (strategy == "none" || strategy == "normal")
+    page_loading_strategy_ = strategy;
+  else
+    return Status(kUnknownError, "unsupported load strategy");
+  return Status(kOk);
+}
+
 Status ChromeImpl::Quit() {
   Status status = QuitImpl();
   if (status.IsOk())
@@ -144,6 +156,7 @@ ChromeImpl::ChromeImpl(
     : quit_(false),
       devtools_http_client_(std::move(http_client)),
       devtools_websocket_client_(std::move(websocket_client)),
+      page_loading_strategy_("normal"),
       port_reservation_(std::move(port_reservation)) {
   devtools_event_listeners_.swap(devtools_event_listeners);
 }