Topsites become keyedService based.

chrome/browser/android/provider/chrome_browser_provider.cc

Index: chrome/browser/android/provider/chrome_browser_provider.cc
diff --git a/chrome/browser/android/provider/chrome_browser_provider.cc b/chrome/browser/android/provider/chrome_browser_provider.cc
index 681aa8bd05c02bbd3a3677518cd6d83da88f4a65..a58c0e1eb7ab25d565fbd9b12e462adcfbdd78cd 100644
--- a/chrome/browser/android/provider/chrome_browser_provider.cc
+++ b/chrome/browser/android/provider/chrome_browser_provider.cc
@@ -29,6 +29,7 @@
 #include "chrome/browser/history/android/sqlite_cursor.h"
 #include "chrome/browser/history/history_service_factory.h"
 #include "chrome/browser/history/top_sites.h"
+#include "chrome/browser/history/top_sites_factory.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/profiles/profile_manager.h"
 #include "chrome/browser/search_engines/template_url_service_factory.h"
@@ -1165,7 +1166,7 @@ ChromeBrowserProvider::ChromeBrowserProvider(JNIEnv* env, jobject obj)
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
   profile_ = g_browser_process->profile_manager()->GetLastUsedProfile();
   bookmark_model_ = BookmarkModelFactory::GetForProfile(profile_);
-  top_sites_ = profile_->GetTopSites();
+  top_sites_ = TopSitesFactory::GetForProfile(profile_);
   favicon_service_ = FaviconServiceFactory::GetForProfile(
       profile_, Profile::EXPLICIT_ACCESS),
   service_.reset(new AndroidHistoryProviderService(profile_));
@@ -1574,7 +1575,7 @@ ScopedJavaLocalRef<jbyteArray> ChromeBrowserProvider::GetThumbnail(
 
   // GetPageThumbnail is synchronous and can be called from any thread.
   scoped_refptr<base::RefCountedMemory> thumbnail;
-  if (top_sites_)
+  if (top_sites_.get())

[Bernhard Bauer, 2015/01/08 10:22:04]

Remove the .get().

[Jitu( very slow this week), 2015/01/12 11:30:07]

Done.

     top_sites_->GetPageThumbnail(url, false, &thumbnail);
 
   if (!thumbnail.get() || !thumbnail->front()) {