Improves props validation

Resolves brave#8557

Auditors: @bridiver

Test Plan:
- create redux component
- pass prop as a simple List
- component should not update if props is the same

app/common/state/immutableUtil.js

@@ -17,6 +17,14 @@ const api = {
     return Immutable.List.isList(obj)
   },
 
+  isSameHashCode: (first, second) => {
+    if (first === null && second === null) {
+      return true
+    }
+
+    return second !== null ? first.hashCode() === second.hashCode() : false
+  },
+
   makeImmutable: (obj) => {
     return api.isImmutable(obj) ? obj : Immutable.fromJS(obj)
   }

app/renderer/components/reduxComponent.js

@@ -3,6 +3,7 @@ const ImmutableComponent = require('./immutableComponent')
 const React = require('react')
 const windowStore = require('../../../js/stores/windowStore')
 const debounce = require('../../../js/lib/debounce')
+const {isList, isSameHashCode} = require('../../common/state/immutableUtil')
 
 const mergePropsImpl = (stateProps, dispatchProps, ownProps) => {
   return Object.assign({}, stateProps, dispatchProps, ownProps)
@@ -44,9 +45,15 @@ class ReduxComponent extends ImmutableComponent {
     this.setState(this.buildProps(nextProps))
   }
 
+  checkParam (next, old, prop) {
+    return isList(next[prop])
+      ? !isSameHashCode(next[prop], old[prop])
+      : next[prop] !== this.state[prop]
+  }
+
   shouldComponentUpdate (nextProps, nextState) {
-    return Object.keys(nextState).some((prop) => nextState[prop] !== this.state[prop]) ||
-      Object.keys(nextProps).some((prop) => nextProps[prop] !== this.props[prop])
+    return Object.keys(nextState).some((prop) => this.checkParam(nextState, this.state, prop)) ||
+    Object.keys(nextProps).some((prop) => this.checkParam(nextProps, this.props, prop))
   }
 
   mergeProps (stateProps, dispatchProps, ownProps) {