Revert of PlzNavigate: Enforce 'frame-src' CSP on the browser.

content/common/navigation_params.cc

Index: content/common/navigation_params.cc
diff --git a/content/common/navigation_params.cc b/content/common/navigation_params.cc
index 394e8f364286bf955accf45f8275781deba78d53..33ce95e61b3285dbfa59200602e5134b9f1ac839 100644
--- a/content/common/navigation_params.cc
+++ b/content/common/navigation_params.cc
@@ -43,8 +43,7 @@
       report_type(FrameMsg_UILoadMetricsReportType::NO_REPORT),
       previews_state(PREVIEWS_UNSPECIFIED),
       navigation_start(base::TimeTicks::Now()),
-      method("GET"),
-      should_check_main_world_csp(CSPDisposition::CHECK) {}
+      method("GET") {}
 
 CommonNavigationParams::CommonNavigationParams(
     const GURL& url,
@@ -61,8 +60,7 @@
     const base::TimeTicks& navigation_start,
     std::string method,
     const scoped_refptr<ResourceRequestBodyImpl>& post_data,
-    base::Optional<SourceLocation> source_location,
-    CSPDisposition should_check_main_world_csp)
+    base::Optional<SourceLocation> source_location)
     : url(url),
       referrer(referrer),
       transition(transition),
@@ -77,8 +75,7 @@
       navigation_start(navigation_start),
       method(method),
       post_data(post_data),
-      source_location(source_location),
-      should_check_main_world_csp(should_check_main_world_csp) {
+      source_location(source_location) {
   // |method != "POST"| should imply absence of |post_data|.
   if (method != "POST" && post_data) {
     NOTREACHED();