Don't count modifiers-changed events as being user gestures.

content/child/blink_platform_impl.h

 // Copyright 2014 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.
 
 #ifndef CONTENT_CHILD_BLINK_PLATFORM_IMPL_H_
 #define CONTENT_CHILD_BLINK_PLATFORM_IMPL_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 96 matching lines @@
       const blink::WebURL& script_url) override;
   blink::WebCrypto* Crypto() override;
   blink::WebNotificationManager* GetNotificationManager() override;
   blink::WebPushProvider* PushProvider() override;
   blink::WebMediaCapabilitiesClient* MediaCapabilitiesClient() override;
 
   blink::WebString DomCodeStringFromEnum(int dom_code) override;
   int DomEnumFromCodeString(const blink::WebString& codeString) override;
   blink::WebString DomKeyStringFromEnum(int dom_key) override;
   int DomKeyEnumFromString(const blink::WebString& key_string) override;
+  bool IsDomKeyForModifier(int dom_key) override;
 
   // This class does *not* own the compositor thread. It is the responsibility
   // of the caller to ensure that the compositor thread is cleared before it is
   // destructed.
   void SetCompositorThread(blink::scheduler::WebThreadBase* compositor_thread);
 
   std::unique_ptr<blink::WebFeaturePolicy> CreateFeaturePolicy(
       const blink::WebFeaturePolicy* parentPolicy,
       const blink::WebParsedFeaturePolicy& containerPolicy,
       const blink::WebParsedFeaturePolicy& policyHeader,
@@ skipping 18 matching lines @@
 
   scoped_refptr<ThreadSafeSender> thread_safe_sender_;
   scoped_refptr<NotificationDispatcher> notification_dispatcher_;
 
   blink::scheduler::WebThreadBase* compositor_thread_;
 };
 
 }  // namespace content
 
 #endif  // CONTENT_CHILD_BLINK_PLATFORM_IMPL_H_