Fix crash when destroying a RenderWidgetHost that holds the pointer

content/browser/renderer_host/text_input_client_mac_unittest.mm

 // Copyright (c) 2012 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.
 
 #import "content/browser/renderer_host/text_input_client_mac.h"
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include "base/bind.h"
@@ skipping 18 matching lines @@
 class MockRenderWidgetHostDelegate : public RenderWidgetHostDelegate {
  public:
   MockRenderWidgetHostDelegate() {}
   ~MockRenderWidgetHostDelegate() override {}
 
  private:
   void Cut() override {}
   void Copy() override {}
   void Paste() override {}
   void SelectAll() override {}
+  bool HasMouseLock(RenderWidgetHostImpl*) override { return false; }
 };
 
 // This test does not test the WebKit side of the dictionary system (which
 // performs the actual data fetching), but rather this just tests that the
 // service's signaling system works.
 class TextInputClientMacTest : public testing::Test {
  public:
   TextInputClientMacTest()
       : browser_context_(),
         process_factory_(),
@@ skipping 147 matching lines @@
 
 TEST_F(TextInputClientMacTest, TimeoutRectForRange) {
   NSRect rect = service()->GetFirstRectForRange(widget(), NSMakeRange(0, 32));
   EXPECT_EQ(1U, ipc_sink().message_count());
   EXPECT_TRUE(ipc_sink().GetUniqueMessageMatching(
       TextInputClientMsg_FirstRectForCharacterRange::ID));
   EXPECT_NSEQ(NSZeroRect, rect);
 }
 
 }  // namespace content