PlzNavigate: Fix for the http/tests/inspector/resource-har-conversion.html layout test failure.

third_party/WebKit/public/web/WebFrameClient.h

Index: third_party/WebKit/public/web/WebFrameClient.h
diff --git a/third_party/WebKit/public/web/WebFrameClient.h b/third_party/WebKit/public/web/WebFrameClient.h
index 8549e527814fa4ab76f2e35aefc491726a62d4ef..ce7d795a44d058421100201f29c0d360ff81d98c 100644
--- a/third_party/WebKit/public/web/WebFrameClient.h
+++ b/third_party/WebKit/public/web/WebFrameClient.h
@@ -296,6 +296,7 @@ class BLINK_EXPORT WebFrameClient {
     bool isHistoryNavigationInNewChildFrame;
     bool isClientRedirect;
     WebFormElement form;
+    bool isCacheDisabled;
 
     NavigationPolicyInfo(WebURLRequest& urlRequest)
         : extraData(nullptr),
@@ -304,7 +305,8 @@ class BLINK_EXPORT WebFrameClient {
           defaultPolicy(WebNavigationPolicyIgnore),
           replacesCurrentHistoryItem(false),
           isHistoryNavigationInNewChildFrame(false),
-          isClientRedirect(false) {}
+          isClientRedirect(false),
+          isCacheDisabled(false) {}
   };
 
   virtual WebNavigationPolicy decidePolicyForNavigation(