Remove unwanted logging from web_contents_modal_dialog_manager.cc.

The log statements were added by error by
https://chromium-review.googlesource.com/c/chromium/src/+/867511

TBR=wittman@chromium.org

Bug: 668690
Change-Id: Iefaa5d6cf254762230d8dd4bf04b903689d36777
Reviewed-on: https://chromium-review.googlesource.com/926782Reviewed-by: François Doray <fdoray@chromium.org>
Reviewed-by: Mike Wittman <wittman@chromium.org>
Commit-Queue: François Doray <fdoray@chromium.org>
Cr-Commit-Position: refs/heads/master@{#537821}

components/web_modal/web_contents_modal_dialog_manager.cc

@@ -7,7 +7,6 @@
 #include <algorithm>
 #include <utility>
 
-#include "base/debug/stack_trace.h"
 #include "base/logging.h"
 #include "components/web_modal/web_contents_modal_dialog_manager_delegate.h"
 #include "content/public/browser/navigation_handle.h"
@@ -47,11 +46,8 @@ void WebContentsModalDialogManager::ShowDialogWithManager(
 
   if (child_dialogs_.size() == 1) {
     BlockWebContentsInteraction(true);
-    if (delegate_ && delegate_->IsWebContentsVisible(web_contents())) {
-      LOG(ERROR) << "Initial show";
-      base::debug::StackTrace().Print();
+    if (delegate_ && delegate_->IsWebContentsVisible(web_contents()))
       child_dialogs_.back().manager->Show();
-    }
   }
 }
 
@@ -168,15 +164,10 @@ void WebContentsModalDialogManager::OnVisibilityChanged(
     return;
   }
 
-  if (web_contents_is_hidden_) {
-    LOG(ERROR) << "Hide";
-    base::debug::StackTrace().Print();
+  if (web_contents_is_hidden_)
     child_dialogs_.front().manager->Hide();
-  } else {
-    LOG(ERROR) << "Show";
-    base::debug::StackTrace().Print();
+  else
     child_dialogs_.front().manager->Show();
-  }
 }
 
 void WebContentsModalDialogManager::WebContentsDestroyed() {