<webview>: Partially migrate loadcommit event from content to chrome

chrome/browser/webview/webview_guest.cc

Index: chrome/browser/webview/webview_guest.cc
diff --git a/chrome/browser/webview/webview_guest.cc b/chrome/browser/webview/webview_guest.cc
index 958b0e2930d772131d8fc271dba098b0e14acb7a..37afe5df7d8565923f9731884df01bb73356e9fc 100644
--- a/chrome/browser/webview/webview_guest.cc
+++ b/chrome/browser/webview/webview_guest.cc
@@ -5,8 +5,12 @@
 #include "chrome/browser/webview/webview_guest.h"
 
 #include "base/lazy_instance.h"
+#include "base/strings/stringprintf.h"
 #include "chrome/browser/extensions/api/web_request/web_request_api.h"
+#include "chrome/browser/extensions/api/webview/webview_api_constants.h"
+#include "chrome/browser/extensions/event_router.h"
 #include "chrome/browser/extensions/extension_renderer_state.h"
+#include "chrome/browser/extensions/extension_system.h"
 #include "chrome/browser/extensions/script_executor.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/render_process_host.h"
@@ -15,6 +19,8 @@
 
 using content::WebContents;
 
+namespace keys = webview_api_constants;
+
 namespace chrome {
 
 namespace {
@@ -64,13 +70,48 @@ WebViewGuest* WebViewGuest::From(int embedder_process_id,
   return it == guest_map->end() ? NULL : it->second;
 }
 
+void WebViewGuest::DispatchEvent(const std::string& event_name,
+                                 scoped_ptr<DictionaryValue> event) {
+  Profile* profile = Profile::FromBrowserContext(
+      web_contents()->GetBrowserContext());
+
+  extensions::EventFilteringInfo info;
+  info.SetURL(GURL());
+  info.SetInstanceID(guest_instance_id_);
+  scoped_ptr<ListValue> args(new ListValue());
+  args->Append(event.release());
+
+  extensions::EventRouter::DispatchEvent(
+      embedder_web_contents_, profile, extension_id_,
+      base::StringPrintf("webview.on%s", event_name.c_str()), args.Pass(),
+      extensions::EventRouter::USER_GESTURE_UNKNOWN, info);
+}
+
 WebViewGuest::~WebViewGuest() {
   std::pair<int, int> key(embedder_render_process_id_, guest_instance_id_);
   webview_guest_map.Get().erase(key);
 }
 
+void WebViewGuest::DidCommitProvisionalLoadForFrame(
+    int64 frame_id,
+    bool is_main_frame,
+    const GURL& url,
+    content::PageTransition transition_type,
+    content::RenderViewHost* render_view_host) {
+  scoped_ptr<DictionaryValue> event(new DictionaryValue());
+  event->SetString(keys::kUrl, url.spec());
+  event->SetBoolean(keys::kIsTopLevel, is_main_frame);
+  DispatchEvent(keys::kEventLoadCommit, event.Pass());
+}
+
 void WebViewGuest::WebContentsDestroyed(WebContents* web_contents) {
   RemoveWebViewFromExtensionRendererState(web_contents);
+  extensions::EventRouter* router =
+      extensions::ExtensionSystem::Get(static_cast<Profile*>(profile_))->
+        event_router();
+  router->RemoveEventListener("webview.onloadcommit",
+                              embedder_web_contents_->GetRenderProcessHost(),
+                              extension_id_);
   content::BrowserThread::PostTask(
       content::BrowserThread::IO,
       FROM_HERE,