Pass printing result to the browser....

chrome/renderer/print_web_view_helper_win.cc

Index: chrome/renderer/print_web_view_helper_win.cc
===================================================================
--- chrome/renderer/print_web_view_helper_win.cc	(revision 25608)
+++ chrome/renderer/print_web_view_helper_win.cc	(working copy)
@@ -11,6 +11,7 @@
 #include "chrome/renderer/render_view.h"
 #include "grit/generated_resources.h"
 #include "printing/native_metafile.h"
+#include "skia/ext/vector_canvas.h"
 #include "webkit/api/public/WebConsoleMessage.h"
 #include "webkit/api/public/WebFrame.h"
 
@@ -18,8 +19,6 @@
 using WebKit::WebFrame;
 using WebKit::WebString;
 
-#include "skia/ext/vector_canvas.h"
-
 void PrintWebViewHelper::Print(WebFrame* frame, bool script_initiated) {
   const int kMinSecondsToIgnoreJavascriptInitiatedPrint = 2;
   const int kMaxSecondsToIgnoreJavascriptInitiatedPrint = 2 * 60;  // 2 Minutes.
@@ -149,6 +148,33 @@
   DidFinishPrinting(user_cancelled_print);
 }
 
+void PrintWebViewHelper::PrintPages(const ViewMsg_PrintPages_Params& params,
+                                    WebFrame* frame) {
+  PrepareFrameAndViewForPrint prep_frame_view(params.params,
+                                              frame,
+                                              frame->view());
+  int page_count = prep_frame_view.GetExpectedPageCount();
+
+  Send(new ViewHostMsg_DidGetPrintedPagesCount(routing_id(),
+                                               params.params.document_cookie,
+                                               page_count));
+  if (page_count) {
+    ViewMsg_PrintPage_Params page_params;
+    page_params.params = params.params;
+    if (params.pages.empty()) {
+      for (int i = 0; i < page_count; ++i) {
+        page_params.page_number = i;
+        PrintPage(page_params, prep_frame_view.GetPrintCanvasSize(), frame);
+      }
+    } else {
+      for (size_t i = 0; i < params.pages.size(); ++i) {
+        page_params.page_number = params.pages[i];
+        PrintPage(page_params, prep_frame_view.GetPrintCanvasSize(), frame);
+      }
+    }
+  }
+}
+
 void PrintWebViewHelper::PrintPage(const ViewMsg_PrintPage_Params& params,
                                 const gfx::Size& canvas_size,
                                 WebFrame* frame) {
@@ -204,7 +230,7 @@
   // 100% GDI based.
   skia::VectorCanvas canvas(hdc, size_x, size_y);
   float webkit_shrink = frame->printPage(params.page_number, &canvas);
-  if (shrink <= 0) {
+  if (webkit_shrink <= 0) {

[M-A Ruel, 2009/09/08 14:38:51]

Please test both.

     NOTREACHED() << "Printing page " << params.page_number << " failed.";
   } else {
     // Update the dpi adjustment with the "page shrink" calculated in webkit.