Introduce GetAllIMEAsInputMethodDescriptor function.

chromeos/ime/component_extension_ime_manager_unittest.cc

Index: chromeos/ime/component_extension_ime_manager_unittest.cc
diff --git a/chromeos/ime/component_extension_ime_manager_unittest.cc b/chromeos/ime/component_extension_ime_manager_unittest.cc
index 084ed14bda2c54d9fd90616fd7e8b6a417c5f491..4d165e0d6b60836e1a3924fdc63d9e2350fad6e8 100644
--- a/chromeos/ime/component_extension_ime_manager_unittest.cc
+++ b/chromeos/ime/component_extension_ime_manager_unittest.cc
@@ -254,6 +254,16 @@ TEST_F(ComponentExtensionIMEManagerTest, ListIMEByLanguageTest) {
   EXPECT_EQ(2UL, component_ext_mgr_->ListIMEByLanguage("ja").size());
 }
 
+TEST_F(ComponentExtensionIMEManagerTest, GetAllIMEAsInputMethodDescriptor) {
+  input_method::InputMethodDescriptors descriptors =
+      component_ext_mgr_->GetAllIMEAsInputMethodDescriptor();
+  size_t total_ime_size = 0;
+  for (size_t i = 0; i < ime_list_.size(); ++i) {
+    total_ime_size += ime_list_[i].engines.size();
+  }
+  EXPECT_EQ(total_ime_size, descriptors.size());
+}
+
 }  // namespace
 
 }  // namespace input_method