Assume all providers may give zero suggest responses.

chrome/browser/autocomplete/shortcuts_provider_unittest.cc

Index: chrome/browser/autocomplete/shortcuts_provider_unittest.cc
diff --git a/chrome/browser/autocomplete/shortcuts_provider_unittest.cc b/chrome/browser/autocomplete/shortcuts_provider_unittest.cc
index ddd543efc32703d9e4d9e97f18d7d81f4d03e760..e5546bd7a3f76d2591afdc844d637b895e216cb9 100644
--- a/chrome/browser/autocomplete/shortcuts_provider_unittest.cc
+++ b/chrome/browser/autocomplete/shortcuts_provider_unittest.cc
@@ -360,7 +360,7 @@ void ShortcutsProviderTest::RunTest(
                           metrics::OmniboxEventProto::INVALID_SPEC,
                           prevent_inline_autocomplete, false, true, true,
                           ChromeAutocompleteSchemeClassifier(&profile_));
-  provider_->Start(input, false);
+  provider_->Start(input, false, false);
   EXPECT_TRUE(provider_->done());
 
   ac_matches_ = provider_->matches();
@@ -821,6 +821,16 @@ TEST_F(ShortcutsProviderTest, DeleteMatch) {
               backend_->shortcuts_map().find(ASCIIToUTF16("delete")));
 }
 
+TEST_F(ShortcutsProviderTest, DoesNotProvideOnFocus) {
+  AutocompleteInput input(ASCIIToUTF16("about:o"), base::string16::npos,
+                          std::string(), GURL(),
+                          metrics::OmniboxEventProto::INVALID_SPEC,
+                          false, false, true, true,
+                          ChromeAutocompleteSchemeClassifier(&profile_));
+  provider_->Start(input, false, true);
+  EXPECT_TRUE(provider_->matches().empty());
+}
+
 #if defined(ENABLE_EXTENSIONS)
 TEST_F(ShortcutsProviderTest, Extension) {
   // Try an input string that matches an extension URL.