Add "Request app banner" context menu in DevTools

chrome/browser/ui/browser.cc

Index: chrome/browser/ui/browser.cc
diff --git a/chrome/browser/ui/browser.cc b/chrome/browser/ui/browser.cc
index 45656f345dc8030980bdb59c85a72aae68c8e96d..14c0d15d08b721469063671125108fa56ec9c892 100644
--- a/chrome/browser/ui/browser.cc
+++ b/chrome/browser/ui/browser.cc
@@ -36,6 +36,7 @@
 #include "chrome/browser/background/background_contents.h"
 #include "chrome/browser/background/background_contents_service.h"
 #include "chrome/browser/background/background_contents_service_factory.h"
+#include "chrome/browser/banners/app_banner_manager_desktop.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/browser_shutdown.h"
 #include "chrome/browser/character_encoding.h"
@@ -1446,6 +1447,17 @@ scoped_ptr<content::BluetoothChooser> Browser::RunBluetoothChooser(
   return std::move(bluetooth_chooser_desktop);
 }
 
+bool Browser::RequestAppBanner(content::WebContents* web_contents) {
+  banners::AppBannerManagerDesktop* manager =
+      banners::AppBannerManagerDesktop::FromWebContents(web_contents);
+  if (manager) {
+    manager->RequestAppBanner(web_contents->GetMainFrame(),
+                              web_contents->GetLastCommittedURL(), true);
+    return true;
+  }
+  return false;
+}
+
 bool Browser::IsMouseLocked() const {
   return exclusive_access_manager_->mouse_lock_controller()->IsMouseLocked();
 }