Implement a NTP resource cache. Instead of re-generating the

HTML for the NTP each time, keep a cached copy as part of the
profile.

- This changes the handling of StartDataRequest to always happen
on the UI thread since it needs to use the Profile.  Previously
we would generate on the UI thread then handle all the requests
on the IO thread.
- first_view_ got changed into a static bool.  I also removed it
from being added to the json because it didn't appear to be used
anywhere.
- Merge the incognito and regular handler into one since I added
that as a flag to the request in a previous change.

I plan to add the CSS to NTPResourceCache next.

BUG=23120

Review URL: http://codereview.chromium.org/399055

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@32520 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 6 insertions, 0 deletions

diff --git a/chrome/browser/profile.h b/chrome/browser/profile.h
index 98e7aab..b8cec92 100644
--- a/chrome/browser/profile.h
+++ b/chrome/browser/profile.h
@@ -47,6 +47,7 @@ class ExtensionsService;
 class FaviconService;
 class HistoryService;
 class NavigationController;
+class NTPResourceCache;
 class PasswordStore;
 class PersonalDataManager;
 class PrefService;
@@ -382,6 +383,9 @@ class Profile {
   // Start up service that gathers data from web resource feeds.
   virtual void InitWebResources() = 0;
 
+  // Returns the new tab page resource cache.
+  virtual NTPResourceCache* GetNTPResourceCache() = 0;
+
 #ifdef UNIT_TEST
   // Use with caution.  GetDefaultRequestContext may be called on any thread!
   static void set_default_request_context(URLRequestContextGetter* c) {
@@ -481,6 +485,7 @@ class ProfileImpl : public Profile,
   virtual void MarkAsCleanShutdown();
   virtual void InitExtensions();
   virtual void InitWebResources();
+  virtual NTPResourceCache* GetNTPResourceCache();
   virtual ProfileSyncService* GetProfileSyncService();
   void InitSyncService();
 
@@ -539,6 +544,7 @@ class ProfileImpl : public Profile,
   scoped_ptr<TemplateURLModel> template_url_model_;
   scoped_ptr<BookmarkModel> bookmark_bar_model_;
   scoped_refptr<WebResourceService> web_resource_service_;
+  scoped_ptr<NTPResourceCache> ntp_resource_cache_;
 
   scoped_ptr<ProfileSyncService> sync_service_;