Move all remaining appcache-related code to content namespace

content/child/appcache/appcache_dispatcher.cc

Index: content/child/appcache/appcache_dispatcher.cc
diff --git a/content/child/appcache/appcache_dispatcher.cc b/content/child/appcache/appcache_dispatcher.cc
index 11e5b9d3bfe9b5f5cbc96b632b488dfb89e2e63e..02986b19d7fce55ec8a68cea62bd53af936a80f1 100644
--- a/content/child/appcache/appcache_dispatcher.cc
+++ b/content/child/appcache/appcache_dispatcher.cc
@@ -10,7 +10,7 @@ namespace content {
 
 AppCacheDispatcher::AppCacheDispatcher(
     IPC::Sender* sender,
-    appcache::AppCacheFrontend* frontend)
+    AppCacheFrontend* frontend)
     : backend_proxy_(sender),
       frontend_(frontend) {}
 
@@ -32,17 +32,17 @@ bool AppCacheDispatcher::OnMessageReceived(const IPC::Message& msg) {
 }
 
 void AppCacheDispatcher::OnCacheSelected(
-    int host_id, const appcache::AppCacheInfo& info) {
+    int host_id, const AppCacheInfo& info) {
   frontend_->OnCacheSelected(host_id, info);
 }
 
 void AppCacheDispatcher::OnStatusChanged(const std::vector<int>& host_ids,
-                                         appcache::AppCacheStatus status) {
+                                         AppCacheStatus status) {
   frontend_->OnStatusChanged(host_ids, status);
 }
 
 void AppCacheDispatcher::OnEventRaised(const std::vector<int>& host_ids,
-                                       appcache::AppCacheEventID event_id) {
+                                       AppCacheEventID event_id) {
   frontend_->OnEventRaised(host_ids, event_id);
 }
 
@@ -54,14 +54,14 @@ void AppCacheDispatcher::OnProgressEventRaised(
 
 void AppCacheDispatcher::OnErrorEventRaised(
     const std::vector<int>& host_ids,
-    const appcache::AppCacheErrorDetails& details) {
+    const AppCacheErrorDetails& details) {
   frontend_->OnErrorEventRaised(host_ids, details);
 }
 
 void AppCacheDispatcher::OnLogMessage(
     int host_id, int log_level, const std::string& message) {
   frontend_->OnLogMessage(
-      host_id, static_cast<appcache::AppCacheLogLevel>(log_level), message);
+      host_id, static_cast<AppCacheLogLevel>(log_level), message);
 }
 
 void AppCacheDispatcher::OnContentBlocked(int host_id,