Remove instrumentation for bug 880741

Bug https://crbug.com/880741 is fixed. This removes the
instrumentation previously added.

Bug: 880741
Change-Id: I86ad66aa02dc470b7bcf26c697196d7eda369e9a
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1528186
Commit-Queue: Arthur Sonzogni <arthursonzogni@chromium.org>
Reviewed-by: Nasko Oskov <nasko@chromium.org>
Cr-Commit-Position: refs/heads/master@{#641700}

content/browser/frame_host/navigation_handle_impl.cc

@@ -5,7 +5,6 @@
 #include "content/browser/frame_host/navigation_handle_impl.h"
 
 #include "base/bind.h"
-#include "base/debug/dump_without_crashing.h"
 #include "base/logging.h"
 #include "base/metrics/histogram_macros.h"
 #include "content/browser/appcache/appcache_navigation_handle.h"
@@ -876,15 +875,8 @@ void NavigationHandleImpl::OnWillProcessResponseProcessed(
     // If the navigation is done processing the response, then it's ready to
     // commit. Inform observers that the navigation is now ready to commit,
     // unless it is not set to commit (204/205s/downloads).
-    if (GetRenderFrameHost()) {
-      base::WeakPtr<NavigationHandleImpl> weak_ptr = weak_factory_.GetWeakPtr();
+    if (GetRenderFrameHost())
       ReadyToCommitNavigation(false);
-      // TODO(https://crbug.com/880741): Remove this once the bug is fixed.
-      if (!weak_ptr) {
-        base::debug::DumpWithoutCrashing();
-        return;
-      }
-    }
   } else {
     state_ = CANCELING;
   }

content/browser/frame_host/navigation_request.cc

@@ -1087,11 +1087,6 @@ void NavigationRequest::OnResponseStarted(
         rfh, blink::mojom::WebFeature::kOpenerNavigationDownloadCrossOrigin);
   }
 
-  // TODO(https://crbug.com/880741): Remove this once the bug is fixed.
-  if (state_ != STARTED) {
-    DEBUG_ALIAS_FOR_GURL(url, navigation_handle_->GetURL());
-    base::debug::DumpWithoutCrashing();
-  }
   DCHECK_EQ(state_, STARTED);
   DCHECK(response);
   TRACE_EVENT_ASYNC_STEP_INTO0("navigation", "NavigationRequest", this,
@@ -1852,11 +1847,6 @@ void NavigationRequest::CommitNavigation() {
          render_frame_host_ ==
              frame_tree_node_->render_manager()->speculative_frame_host());
 
-  // TODO(https://crbug.com/880741): Remove this once the bug is fixed.
-  if (!frame_tree_node_->navigation_request()) {
-    DEBUG_ALIAS_FOR_GURL(url, navigation_handle_->GetURL());
-    base::debug::DumpWithoutCrashing();
-  }
 
   frame_tree_node_->TransferNavigationRequestOwnership(render_frame_host_);
   if (IsPerNavigationMojoInterfaceEnabled() && request_navigation_client_ &&