Add "Request app banner" context menu in DevTools

chrome/browser/android/tab_android.cc

Index: chrome/browser/android/tab_android.cc
diff --git a/chrome/browser/android/tab_android.cc b/chrome/browser/android/tab_android.cc
index 80157cef7d3c36fc67944ffc230da12c4b826458..d85429041a4c1a0093350efaf6694ae12f2b485b 100644
--- a/chrome/browser/android/tab_android.cc
+++ b/chrome/browser/android/tab_android.cc
@@ -275,6 +275,11 @@ void TabAndroid::SwapTabContents(content::WebContents* old_contents,
       did_finish_load);
 }
 
+bool TabAndroid::OpenAppBanner(content::WebContents* web_contents) {
+  JNIEnv* env = base::android::AttachCurrentThread();
+  return Java_Tab_openAppBanner(env, weak_java_tab_.get(env).obj());
+}
+
 void TabAndroid::DefaultSearchProviderChanged(
     bool google_base_url_domain_changed) {
   // TODO(kmadhusu): Move this function definition to a common place and update