Modifying the "dangerous download" algorithm.

chrome/renderer/render_view.cc

 // Copyright (c) 2010 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 "chrome/renderer/render_view.h"
 
 #include <algorithm>
 #include <cmath>
 #include <string>
 #include <vector>
@@ skipping 3067 matching lines @@
     if (event_time != 0.0)
       navigation_state->set_request_time(Time::FromDoubleT(event_time));
   }
 
   // Start time is only set after request time.
   navigation_state->set_start_load_time(Time::Now());
 
   bool is_top_most = !frame->parent();
   if (is_top_most) {
     navigation_gesture_ = frame->isProcessingUserGesture() ?
-        NavigationGestureUnknown : NavigationGestureAuto;
+        NavigationGestureUser : NavigationGestureAuto;
 
     // Make sure redirect tracking state is clear for the new load.
     completed_client_redirect_src_ = GURL();
   } else if (frame->parent()->isLoading()) {
     // Take note of AUTO_SUBFRAME loads here, so that we can know how to
     // load an error page.  See didFailProvisionalLoad.
     navigation_state->set_transition_type(PageTransition::AUTO_SUBFRAME);
   }
 
   Send(new ViewHostMsg_DidStartProvisionalLoadForFrame(
@@ skipping 347 matching lines @@
       request.setCachePolicy(state->cache_policy_override());
   }
 
   if (top_data_source) {
     NavigationState* state = NavigationState::FromDataSource(top_data_source);
     if (state && request.targetType() == WebURLRequest::TargetIsPrefetch)
       state->set_was_prefetcher(true);
   }
 
   request.setRequestorID(routing_id_);
+  request.setHasUserGesture(frame->isProcessingUserGesture());
+
   if (CommandLine::ForCurrentProcess()->HasSwitch(switches::kNoReferrers))
     request.clearHTTPHeaderField("Referer");
 
   // Temporary metrics, see site_isolation_metrics.h
   SiteIsolationMetrics::AddRequest(identifier, request.targetType());
 }
 
 void RenderView::didReceiveResponse(
     WebFrame* frame, unsigned identifier, const WebURLResponse& response) {
 
@@ skipping 2060 matching lines @@
       IPC::PlatformFileForTransitToPlatformFile(file_for_transit),
       message_id);
 }
 
 #if defined(OS_MACOSX)
 void RenderView::OnSelectPopupMenuItem(int selected_index) {
   external_popup_menu_->DidSelectItem(selected_index);
   external_popup_menu_.reset();
 }
 #endif