Add tests for input.ime.* APIs.

ui/base/ime/dummy_text_input_client.cc

Index: ui/base/ime/dummy_text_input_client.cc
diff --git a/ui/base/ime/dummy_text_input_client.cc b/ui/base/ime/dummy_text_input_client.cc
index ac9b97343ab9eb0203d80adf36b6900156d60973..d386bba4f14767caa118e3c3ce345c6b4986ea73 100644
--- a/ui/base/ime/dummy_text_input_client.cc
+++ b/ui/base/ime/dummy_text_input_client.cc
@@ -9,10 +9,14 @@
 namespace ui {
 
 DummyTextInputClient::DummyTextInputClient()
-    : text_input_type_(TEXT_INPUT_TYPE_NONE), insert_char_count_(0) {}
+    : text_input_type_(TEXT_INPUT_TYPE_NONE),
+      insert_char_count_(0),
+      insert_text_count_(0) {}
 
 DummyTextInputClient::DummyTextInputClient(TextInputType text_input_type)
-    : text_input_type_(text_input_type), insert_char_count_(0) {}
+    : text_input_type_(text_input_type),
+      insert_char_count_(0),
+      insert_text_count_(0) {}
 
 DummyTextInputClient::~DummyTextInputClient() {
 }
@@ -28,6 +32,8 @@ void DummyTextInputClient::ClearCompositionText() {
 }
 
 void DummyTextInputClient::InsertText(const base::string16& text) {
+  ++insert_text_count_;
+  last_insert_text_ = text;
 }
 
 void DummyTextInputClient::InsertChar(const KeyEvent& event) {