Adds support for saving favicon size into history database.

chrome/browser/favicon/favicon_handler.cc

Index: chrome/browser/favicon/favicon_handler.cc
diff --git a/chrome/browser/favicon/favicon_handler.cc b/chrome/browser/favicon/favicon_handler.cc
index d33e808e645ff635889ab6325c073d7d78b1d4c0..5f2df667b8135fa8eae06ec7ec0362cc543702b4 100644
--- a/chrome/browser/favicon/favicon_handler.cc
+++ b/chrome/browser/favicon/favicon_handler.cc
@@ -279,7 +279,8 @@ void FaviconHandler::ProcessCurrentUrl() {
               history_icon_.is_valid() &&
               DoUrlAndIconMatch(
                   *current_candidate(),
-                  history_icon_.icon_url, history_icon_.icon_type)) {
+                  history_icon_.elements[0].icon_url,
+                  history_icon_.icon_type)) {
     return;
   }
 
@@ -396,35 +397,38 @@ bool FaviconHandler::ShouldSaveFavicon(const GURL& url) {
 
 void FaviconHandler::OnFaviconDataForInitialURL(
     FaviconService::Handle handle,
-    history::FaviconData favicon) {
+    history::FaviconData favicon_data) {
   NavigationEntry* entry = GetEntry();
   if (!entry)
     return;
 
   got_favicon_from_history_ = true;
-  history_icon_ = favicon;
+  history_icon_ = favicon_data;
 
-  favicon_expired_ = (favicon.known_icon && favicon.expired);
+  favicon_expired_ = (favicon_data.known_icon && favicon_data.expired);
 
-  if (favicon.known_icon && favicon.icon_type == history::FAVICON &&
+  history::FaviconDataElement element;
+  if (!favicon_data.elements.empty())
+    element = favicon_data.elements[0];
+  if (favicon_data.known_icon && favicon_data.icon_type == history::FAVICON &&
       !entry->GetFavicon().valid &&
       (!current_candidate() ||
        DoUrlAndIconMatch(
-           *current_candidate(), favicon.icon_url, favicon.icon_type))) {
+           *current_candidate(), element.icon_url, favicon_data.icon_type))) {
     // The db knows the favicon (although it may be out of date) and the entry
     // doesn't have an icon. Set the favicon now, and if the favicon turns out
     // to be expired (or the wrong url) we'll fetch later on. This way the
     // user doesn't see a flash of the default favicon.
-    entry->GetFavicon().url = favicon.icon_url;
-    if (favicon.is_valid())
-      UpdateFavicon(entry, favicon.image_data);
+    entry->GetFavicon().url = element.icon_url;
+    if (favicon_data.is_valid())
+      UpdateFavicon(entry, element.bitmap_data);
     entry->GetFavicon().valid = true;
   }
 
-  if (favicon.known_icon && !favicon.expired) {
+  if (favicon_data.known_icon && !favicon_data.expired) {
     if (current_candidate() &&
         !DoUrlAndIconMatch(
-             *current_candidate(), favicon.icon_url, favicon.icon_type)) {
+             *current_candidate(), element.icon_url, favicon_data.icon_type)) {
       // Mapping in the database is wrong. DownloadFavIconOrAskHistory will
       // update the mapping for this url and download the favicon if we don't
       // already have it.
@@ -473,21 +477,22 @@ void FaviconHandler::DownloadFaviconOrAskHistory(
 }
 
 void FaviconHandler::OnFaviconData(FaviconService::Handle handle,
-                                  history::FaviconData favicon) {
+                                  history::FaviconData favicon_data) {
   NavigationEntry* entry = GetEntry();
   if (!entry)
     return;
 
   // No need to update the favicon url. By the time we get here
   // UpdateFaviconURL will have set the favicon url.
-  if (favicon.icon_type == history::FAVICON) {
-    if (favicon.is_valid()) {
+  if (favicon_data.icon_type == history::FAVICON) {
+    if (favicon_data.is_valid()) {
       // There is a favicon, set it now. If expired we'll download the current
       // one again, but at least the user will get some icon instead of the
       // default and most likely the current one is fine anyway.
-      UpdateFavicon(entry, favicon.image_data);
+      const history::FaviconDataElement& element = favicon_data.elements[0];
+      UpdateFavicon(entry, element.bitmap_data);
     }
-    if (!favicon.known_icon || favicon.expired) {
+    if (!favicon_data.known_icon || favicon_data.expired) {
       // We don't know the favicon, or it is out of date. Request the current
       // one.
       ScheduleDownload(entry->GetURL(), entry->GetFavicon().url,
@@ -495,9 +500,11 @@ void FaviconHandler::OnFaviconData(FaviconService::Handle handle,
                        history::FAVICON,
                        FaviconTabHelper::ImageDownloadCallback());
     }
-  } else if (current_candidate() && (!favicon.known_icon || favicon.expired ||
-      !(DoUrlAndIconMatch(
-            *current_candidate(), favicon.icon_url, favicon.icon_type)))) {
+  } else if (current_candidate() &&
+      (!favicon_data.known_icon || favicon_data.expired ||
+       favicon_data.elements.empty() ||
+       !(DoUrlAndIconMatch(*current_candidate(),
+           favicon_data.elements[0].icon_url, favicon_data.icon_type)))) {
     // We don't know the favicon, it is out of date or its type is not same as
     // one got from page. Request the current one.
     ScheduleDownload(entry->GetURL(), current_candidate()->icon_url,
@@ -505,7 +512,7 @@ void FaviconHandler::OnFaviconData(FaviconService::Handle handle,
         ToHistoryIconType(current_candidate()->icon_type),
         FaviconTabHelper::ImageDownloadCallback());
   }
-  history_icon_ = favicon;
+  history_icon_ = favicon_data;
 }
 
 int FaviconHandler::ScheduleDownload(