Remove unused code

Review URL: https://codereview.chromium.org/932543003

Cr-Commit-Position: refs/heads/master@{#317629}

printing/printing_context.cc

@@ -20,7 +20,6 @@ const float kCloudPrintMarginInch = 0.25;
 
 PrintingContext::PrintingContext(Delegate* delegate)
     : delegate_(delegate),
-      dialog_box_dismissed_(false),
       in_print_job_(false),
       abort_printing_(false) {
   CHECK(delegate_);
@@ -40,7 +39,6 @@ void PrintingContext::ResetSettings() {
   settings_.Clear();
 
   in_print_job_ = false;
-  dialog_box_dismissed_ = false;
   abort_printing_ = false;
 }
 

printing/printing_context.h

@@ -139,9 +139,6 @@ class PRINTING_EXPORT PrintingContext {
   // Printing context delegate.
   Delegate* delegate_;
 
-  // The dialog box has been dismissed.
-  volatile bool dialog_box_dismissed_;
-
   // Is a print job being done.
   volatile bool in_print_job_;
 

printing/printing_context_system_dialog_win.cc

@@ -13,7 +13,7 @@
 namespace printing {
 
 PrintingContextSytemDialogWin::PrintingContextSytemDialogWin(Delegate* delegate)
-    : PrintingContextWin(delegate), dialog_box_(NULL) {
+    : PrintingContextWin(delegate) {
 }
 
 PrintingContextSytemDialogWin::~PrintingContextSytemDialogWin() {
@@ -25,7 +25,6 @@ void PrintingContextSytemDialogWin::AskUserForSettings(
     bool is_scripted,
     const PrintSettingsCallback& callback) {
   DCHECK(!in_print_job_);
-  dialog_box_dismissed_ = false;
 
   HWND window = GetRootWindow(delegate_->GetParentView());
   DCHECK(window);
@@ -76,14 +75,6 @@ void PrintingContextSytemDialogWin::AskUserForSettings(
   callback.Run(ParseDialogResultEx(dialog_options));
 }
 
-void PrintingContextSytemDialogWin::Cancel() {
-  PrintingContextWin::Cancel();
-  if (dialog_box_) {
-    DestroyWindow(dialog_box_);
-    dialog_box_dismissed_ = true;
-  }
-}
-
 HRESULT PrintingContextSytemDialogWin::ShowPrintDialog(PRINTDLGEX* options) {
   // Runs always on the UI thread.
   static bool is_dialog_shown = false;

printing/printing_context_system_dialog_win.h

@@ -27,7 +27,6 @@ class PRINTING_EXPORT PrintingContextSytemDialogWin
       bool has_selection,
       bool is_scripted,
       const PrintSettingsCallback& callback) override;
-  virtual void Cancel() override;
 
  private:
   friend class MockPrintingContextWin;
@@ -46,9 +45,6 @@ class PRINTING_EXPORT PrintingContextSytemDialogWin
   Result ParseDialogResultEx(const PRINTDLGEX& dialog_options);
   Result ParseDialogResult(const PRINTDLG& dialog_options);
 
-  // The dialog box for the time it is shown.
-  volatile HWND dialog_box_;
-
   DISALLOW_COPY_AND_ASSIGN(PrintingContextSytemDialogWin);
 };