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

content/child/blink_platform_impl.cc

 // 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.
 
 #include "content/child/blink_platform_impl.h"
 
 #include <math.h>
 
 #include <memory>
 #include <vector>
@@ skipping 814 matching lines @@
 WebString BlinkPlatformImpl::DomKeyStringFromEnum(int dom_key) {
   return WebString::FromUTF8(ui::KeycodeConverter::DomKeyToKeyString(
       static_cast<ui::DomKey>(dom_key)));
 }
 
 int BlinkPlatformImpl::DomKeyEnumFromString(const WebString& key_string) {
   return static_cast<int>(
       ui::KeycodeConverter::KeyStringToDomKey(key_string.Utf8()));
 }
 
+bool BlinkPlatformImpl::IsDomKeyForModifier(int dom_key) {
+  return ui::KeycodeConverter::IsDomKeyForModifier(
+      static_cast<ui::DomKey>(dom_key));
+}
+
 std::unique_ptr<blink::WebFeaturePolicy> BlinkPlatformImpl::CreateFeaturePolicy(
     const blink::WebFeaturePolicy* parent_policy,
     const blink::WebParsedFeaturePolicy& container_policy,
     const blink::WebParsedFeaturePolicy& policy_header,
     const blink::WebSecurityOrigin& origin) {
   std::unique_ptr<FeaturePolicy> policy = FeaturePolicy::CreateFromParentPolicy(
       static_cast<const FeaturePolicy*>(parent_policy),
       FeaturePolicyHeaderFromWeb(container_policy), url::Origin(origin));
   policy->SetHeaderPolicy(FeaturePolicyHeaderFromWeb(policy_header));
   return std::move(policy);
 }
 
 std::unique_ptr<blink::WebFeaturePolicy>
 BlinkPlatformImpl::DuplicateFeaturePolicyWithOrigin(
     const blink::WebFeaturePolicy& policy,
     const blink::WebSecurityOrigin& new_origin) {
   return FeaturePolicy::CreateFromPolicyWithOrigin(
       static_cast<const FeaturePolicy&>(policy), url::Origin(new_origin));
 }
 
 }  // namespace content