Enable right clicking on the applist doodle web contents and log the data.

chrome/browser/ui/app_list/start_page_service.cc

Index: chrome/browser/ui/app_list/start_page_service.cc
diff --git a/chrome/browser/ui/app_list/start_page_service.cc b/chrome/browser/ui/app_list/start_page_service.cc
index 4df7bbbd343d0e53d48a4f01c8f3e60feca31bb9..3f958cc64d43fc08894c642987b7f8688860ac83 100644
--- a/chrome/browser/ui/app_list/start_page_service.cc
+++ b/chrome/browser/ui/app_list/start_page_service.cc
@@ -630,6 +630,7 @@ void StartPageService::FetchDoodleJson() {
 void StartPageService::OnURLFetchComplete(const net::URLFetcher* source) {
   std::string json_data;
   source->GetResponseAsString(&json_data);
+  VLOG(1) << "App list doodle data = " << json_data;

[Matt Giuca, 2015/02/26 03:07:08]

// TODO(calamity): Remove this log after http://crbug.com/462082 is diagnosed.

[calamity, 2015/02/26 03:27:25]

Changed to a warning log of crashed renderer instead as discussed.

 
   // Remove XSSI guard for JSON parsing.
   size_t json_start_index = json_data.find("{");