Convert //chrome/browser/ui from scoped_ptr to std::unique_ptr

chrome/browser/ui/webui/ntp/favicon_webui_handler.cc

Index: chrome/browser/ui/webui/ntp/favicon_webui_handler.cc
diff --git a/chrome/browser/ui/webui/ntp/favicon_webui_handler.cc b/chrome/browser/ui/webui/ntp/favicon_webui_handler.cc
index 4f40fdc63e4b46ae6d01edf26f18115255a70e55..1464b0750549dac6b83b03fb57efcb337fb4f7c4 100644
--- a/chrome/browser/ui/webui/ntp/favicon_webui_handler.cc
+++ b/chrome/browser/ui/webui/ntp/favicon_webui_handler.cc
@@ -108,7 +108,7 @@ void FaviconWebUIHandler::HandleGetFaviconDominantColor(
     for (const auto& prepopulated_page : top_sites->GetPrepopulatedPages()) {
       if (url == prepopulated_page.most_visited.url) {
         base::StringValue dom_id_value(dom_id);
-        scoped_ptr<base::StringValue> color(
+        std::unique_ptr<base::StringValue> color(
             SkColorToCss(prepopulated_page.color));
         web_ui()->CallJavascriptFunction("ntp.setFaviconDominantColor",
                                          dom_id_value, *color);
@@ -131,7 +131,7 @@ void FaviconWebUIHandler::HandleGetFaviconDominantColor(
 void FaviconWebUIHandler::OnFaviconDataAvailable(
     int id,
     const favicon_base::FaviconRawBitmapResult& bitmap_result) {
-  scoped_ptr<base::StringValue> color_value;
+  std::unique_ptr<base::StringValue> color_value;
 
   if (bitmap_result.is_valid())
     color_value.reset(GetDominantColorCssString(bitmap_result.bitmap_data));
@@ -167,7 +167,7 @@ void FaviconWebUIHandler::NotifyAppIconReady(const std::string& extension_id) {
     return;
   scoped_refptr<base::RefCountedStaticMemory> bits_mem(
       new base::RefCountedStaticMemory(&bits.front(), bits.size()));
-  scoped_ptr<base::StringValue> color_value(
+  std::unique_ptr<base::StringValue> color_value(
       GetDominantColorCssString(bits_mem));
   base::StringValue id(extension_id);
   web_ui()->CallJavascriptFunction(