Assume all providers may give zero suggest responses.

chrome/browser/autocomplete/shortcuts_provider.cc

Index: chrome/browser/autocomplete/shortcuts_provider.cc
diff --git a/chrome/browser/autocomplete/shortcuts_provider.cc b/chrome/browser/autocomplete/shortcuts_provider.cc
index 106cf1c68c992f777d08711d934d559a6b0acf15..3c1633d83ac85f909879135a3065a481a854d12d 100644
--- a/chrome/browser/autocomplete/shortcuts_provider.cc
+++ b/chrome/browser/autocomplete/shortcuts_provider.cc
@@ -67,17 +67,15 @@ ShortcutsProvider::ShortcutsProvider(Profile* profile)
 }
 
 void ShortcutsProvider::Start(const AutocompleteInput& input,
-                              bool minimal_changes) {
+                              bool minimal_changes,
+                              bool called_due_to_focus) {
   matches_.clear();
 
-  if ((input.type() == metrics::OmniboxInputType::INVALID) ||
-      (input.type() == metrics::OmniboxInputType::FORCED_QUERY))
-    return;
-
-  if (input.text().empty())
-    return;
-
-  if (!initialized_)
+  if (called_due_to_focus ||
+      (input.type() == metrics::OmniboxInputType::INVALID) ||
+      (input.type() == metrics::OmniboxInputType::FORCED_QUERY) ||
+      input.text().empty() ||
+      !initialized_)
     return;
 
   base::TimeTicks start_time = base::TimeTicks::Now();