Remove the 2-level input method system & InputMethodBridge.

ui/views/controls/prefix_selector_unittest.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "ui/views/controls/prefix_selector.h"
 
 #include <string>
 
 #include "base/strings/string_util.h"
 #include "base/strings/utf_string_conversions.h"
@@ skipping 28 matching lines @@
   int selected_row_;
 
   DISALLOW_COPY_AND_ASSIGN(TestPrefixDelegate);
 };
 
 class PrefixSelectorTest : public ViewsTestBase {
  public:
   PrefixSelectorTest() {
     selector_.reset(new PrefixSelector(&delegate_));
   }
+  ~PrefixSelectorTest() override {
+    // Explicitly release |selector_| here which can happen before releasing
+    // |delegate_|.
+    selector_.reset();
+  }
 
  protected:
   scoped_ptr<PrefixSelector> selector_;
   TestPrefixDelegate delegate_;
 
  private:
     DISALLOW_COPY_AND_ASSIGN(PrefixSelectorTest);
 };
 
 TEST_F(PrefixSelectorTest, PrefixSelect) {
@@ skipping 15 matching lines @@
   EXPECT_EQ(2, delegate_.GetSelectedRow());
 
   selector_->OnViewBlur();
   selector_->InsertText(ASCIIToUTF16("\t"));
   selector_->InsertText(ASCIIToUTF16("b"));
   selector_->InsertText(ASCIIToUTF16("a"));
   EXPECT_EQ(2, delegate_.GetSelectedRow());
 }
 
 }  // namespace views