Fix bug where we fail to install an extension that has an empty

chrome/common/extensions/extension_unittest.cc

Index: chrome/common/extensions/extension_unittest.cc
diff --git a/chrome/common/extensions/extension_unittest.cc b/chrome/common/extensions/extension_unittest.cc
index fb40330e0f93ee172b7b698a761c29c111f2d55f..564ef0c6c5c0f312f22da50b34c0aae6f948da75 100644
--- a/chrome/common/extensions/extension_unittest.cc
+++ b/chrome/common/extensions/extension_unittest.cc
@@ -182,11 +182,7 @@ TEST(ExtensionTest, InitFromValueInvalid) {
   permissions = new ListValue;
   input_value->Set(keys::kPermissions, permissions);
   EXPECT_TRUE(extension.InitFromValue(*input_value, true, &error));
-  const std::vector<std::string>* error_vector =
-      ExtensionErrorReporter::GetInstance()->GetErrors();
-  const std::string log_error = error_vector->at(error_vector->size() - 1);
-  EXPECT_TRUE(MatchPattern(log_error,
-      errors::kInvalidPermissionCountWarning));
+  EXPECT_EQ(0u, ExtensionErrorReporter::GetInstance()->GetErrors()->size());
 
   input_value->Set(keys::kPermissions, Value::CreateIntegerValue(9));
   EXPECT_FALSE(extension.InitFromValue(*input_value, true, &error));