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

chrome/browser/webview/webview_guest.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #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"
 #include "content/public/browser/site_instance.h"
 #include "content/public/browser/web_contents.h"
 
 using content::WebContents;
 
+namespace keys = webview_api_constants;
+
 namespace chrome {
 
 namespace {
 
 typedef std::map<std::pair<int, int>, WebViewGuest*> WebViewGuestMap;
 static base::LazyInstance<WebViewGuestMap> webview_guest_map =
     LAZY_INSTANCE_INITIALIZER;
 
 void RemoveWebViewEventListenersOnIOThread(
     void* profile,
@@ skipping 29 matching lines @@
 
 // static
 WebViewGuest* WebViewGuest::From(int embedder_process_id,
                                  int guest_instance_id) {
   WebViewGuestMap* guest_map = webview_guest_map.Pointer();
   WebViewGuestMap::iterator it = guest_map->find(
       std::make_pair(embedder_process_id, guest_instance_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,
       base::Bind(
           &RemoveWebViewEventListenersOnIOThread,
           profile_, extension_id_,
           embedder_render_process_id_,
           webview_instance_id_));
   delete this;
 }
@@ skipping 22 matching lines @@
   content::BrowserThread::PostTask(
       content::BrowserThread::IO, FROM_HERE,
       base::Bind(
           &ExtensionRendererState::RemoveWebView,
           base::Unretained(ExtensionRendererState::GetInstance()),
           web_contents->GetRenderProcessHost()->GetID(),
           web_contents->GetRoutingID()));
 }
 
 }  // namespace chrome