Browser Plugin: Implement Back, Forward, and Go.

content/browser/browser_plugin/browser_plugin_guest.cc

Index: content/browser/browser_plugin/browser_plugin_guest.cc
diff --git a/content/browser/browser_plugin/browser_plugin_guest.cc b/content/browser/browser_plugin/browser_plugin_guest.cc
index 374deec1ecc28b5ac3ede27f9ac94a7a8ef00eda..3eb97c0682757ade6b020365fe76272b79f55169 100644
--- a/content/browser/browser_plugin/browser_plugin_guest.cc
+++ b/content/browser/browser_plugin/browser_plugin_guest.cc
@@ -67,6 +67,18 @@ bool BrowserPluginGuest::ViewTakeFocus(bool reverse) {
   return true;
 }
 
+void BrowserPluginGuest::Back() {
+  web_contents()->GetController().GoBack();
+}
+
+void BrowserPluginGuest::Forward() {
+  web_contents()->GetController().GoForward();
+}
+
+void BrowserPluginGuest::Go(int relative_index) {
+  web_contents()->GetController().GoToOffset(relative_index);
+}
+
 void BrowserPluginGuest::RendererUnresponsive(WebContents* source) {
   base::ProcessHandle process_handle =
       web_contents()->GetRenderProcessHost()->GetHandle();