Browser Plugin: Implement Back, Forward, and Go.

content/browser/browser_plugin/browser_plugin_embedder.cc

Index: content/browser/browser_plugin/browser_plugin_embedder.cc
diff --git a/content/browser/browser_plugin/browser_plugin_embedder.cc b/content/browser/browser_plugin/browser_plugin_embedder.cc
index fef57e639a8e5cfc1cfec670288fe5b1f272a40c..e2309aebdd87aa7b58c1166d44faa89d6d4cc39f 100644
--- a/content/browser/browser_plugin/browser_plugin_embedder.cc
+++ b/content/browser/browser_plugin/browser_plugin_embedder.cc
@@ -214,6 +214,27 @@ void BrowserPluginEmbedder::PluginDestroyed(int instance_id) {
   DestroyGuestByInstanceID(instance_id);
 }
 
+void BrowserPluginEmbedder::Back(int instance_id) {
+  BrowserPluginGuest* guest = GetGuestByInstanceID(instance_id);
+  if (!guest)

[lazyboy, 2012/09/20 20:05:42]

Here and below:
if (guest)
  guest->Back();

pattern is probably better?

[Fady Samuel, 2012/09/21 15:21:56]

Done.

+    return;
+  guest->Back();
+}
+
+void BrowserPluginEmbedder::Forward(int instance_id) {
+  BrowserPluginGuest* guest = GetGuestByInstanceID(instance_id);
+  if (!guest)
+    return;
+  guest->Forward();
+}
+
+void BrowserPluginEmbedder::Go(int instance_id, int relative_index) {
+  BrowserPluginGuest* guest = GetGuestByInstanceID(instance_id);
+  if (!guest)
+    return;
+  guest->Go(relative_index);
+}
+
 void BrowserPluginEmbedder::Observe(int type,
                                     const NotificationSource& source,
                                     const NotificationDetails& details) {