Fixed print_web_view_helper for CEF.

chrome/renderer/printing/print_web_view_helper.h

Index: chrome/renderer/printing/print_web_view_helper.h
diff --git a/chrome/renderer/printing/print_web_view_helper.h b/chrome/renderer/printing/print_web_view_helper.h
index 4ce36b87be3db316141dd015ac3fb4bedd2cc58a..b51b9721a010cdea5ef1c407a5c446e98ee87fab 100644
--- a/chrome/renderer/printing/print_web_view_helper.h
+++ b/chrome/renderer/printing/print_web_view_helper.h
@@ -66,7 +66,9 @@ class PrintWebViewHelper
     : public content::RenderViewObserver,
       public content::RenderViewObserverTracker<PrintWebViewHelper> {
  public:
-  explicit PrintWebViewHelper(content::RenderView* render_view);
+  PrintWebViewHelper(content::RenderView* render_view,
+                     bool preview_enabled,
+                     bool scripted_print_throttling_disabled);
   virtual ~PrintWebViewHelper();
 
   bool IsPrintingEnabled();
@@ -284,13 +286,24 @@ class PrintWebViewHelper
   bool IsScriptInitiatedPrintAllowed(blink::WebFrame* frame,
                                      bool user_initiated);
 
-  // Shows scripted print preview when options from plugin are available.
+  // Returns true if script initiated printing occurs too often.
+  bool IsScriptInitiatedPrintTooFrequent(blink::WebFrame* frame);
+
+  // Reset the counter for script initiated printing.
+  // Scripted printing will be allowed to continue.
+  void ResetScriptedPrintCount();
+
+  // Increment the counter for script initiated printing.
+  // Scripted printing will be blocked for a limited amount of time.
+  void IncrementScriptedPrintCount();
+
+  // Shows scripted print preview when options from plugin are availible.
   void ShowScriptedPrintPreview();
 
   void RequestPrintPreview(PrintPreviewRequestType type);
 
   // Checks whether print preview should continue or not.
-  // Returns true if canceling, false if continuing.
+  // Returns true if cancelling, false if continuing.
   bool CheckForCancel();
 
   // Notifies the browser a print preview page has been rendered.
@@ -307,9 +320,14 @@ class PrintWebViewHelper
   bool reset_prep_frame_view_;
 
   scoped_ptr<PrintMsg_PrintPages_Params> print_pages_params_;
+  bool is_preview_enabled_;
+  bool is_scripted_print_throttling_disabled_;
   bool is_print_ready_metafile_sent_;
   bool ignore_css_margins_;
+
   // Used for scripted initiated printing blocking.
+  base::Time last_cancelled_script_print_;
+  int user_cancelled_scripted_print_count_;
   bool is_scripted_printing_blocked_;
 
   // Let the browser process know of a printing failure. Only set to false when