Update chrome/ to use WeakPtr<T>::get() instead of implicit "operator T*"

chrome/browser/ui/gtk/global_error_bubble.cc

Index: chrome/browser/ui/gtk/global_error_bubble.cc
diff --git a/chrome/browser/ui/gtk/global_error_bubble.cc b/chrome/browser/ui/gtk/global_error_bubble.cc
index e26c3d3d402be6b7497f6f065c29d79b45bfd081..d5203a75e59bc7eb3827c1face625ab99b9870d4 100644
--- a/chrome/browser/ui/gtk/global_error_bubble.cc
+++ b/chrome/browser/ui/gtk/global_error_bubble.cc
@@ -38,7 +38,7 @@ GlobalErrorBubble::GlobalErrorBubble(Browser* browser,
       error_(error),
       message_width_(kMinMessageLabelWidth) {
   DCHECK(browser_);
-  DCHECK(error_);
+  DCHECK(error_.get());
   GtkWidget* content = gtk_vbox_new(FALSE, ui::kControlSpacing);
   gtk_container_set_border_width(GTK_CONTAINER(content),
                                  ui::kContentAreaBorder);
@@ -122,7 +122,7 @@ GlobalErrorBubble::~GlobalErrorBubble() {
 
 void GlobalErrorBubble::BubbleClosing(BubbleGtk* bubble,
                                       bool closed_by_escape) {
-  if (error_)
+  if (error_.get())
     error_->BubbleViewDidClose(browser_);
 }
 
@@ -131,13 +131,13 @@ void GlobalErrorBubble::OnDestroy(GtkWidget* sender) {
 }
 
 void GlobalErrorBubble::OnAcceptButton(GtkWidget* sender) {
-  if (error_)
+  if (error_.get())
     error_->BubbleViewAcceptButtonPressed(browser_);
   bubble_->Close();
 }
 
 void GlobalErrorBubble::OnCancelButton(GtkWidget* sender) {
-  if (error_)
+  if (error_.get())
     error_->BubbleViewCancelButtonPressed(browser_);
   bubble_->Close();
 }