[Print Preview] Modified PP_PrintSettings_Dev interface to support auto fit to page functionality.

webkit/plugins/ppapi/ppapi_plugin_instance.cc

Index: webkit/plugins/ppapi/ppapi_plugin_instance.cc
diff --git a/webkit/plugins/ppapi/ppapi_plugin_instance.cc b/webkit/plugins/ppapi/ppapi_plugin_instance.cc
index 0c42e1d8764bc17df40aad4090d64ae2eb2b7a72..1f49191c806e94413d8e1d9c476dc45c06c85efd 100644
--- a/webkit/plugins/ppapi/ppapi_plugin_instance.cc
+++ b/webkit/plugins/ppapi/ppapi_plugin_instance.cc
@@ -121,6 +121,7 @@ using WebKit::WebFrame;
 using WebKit::WebInputEvent;
 using WebKit::WebPlugin;
 using WebKit::WebPluginContainer;
+using WebKit::WebPrintScalingOption;
 using WebKit::WebScopedUserGesture;
 using WebKit::WebString;
 using WebKit::WebURLRequest;
@@ -163,6 +164,11 @@ const ui::TextInputType kPluginDefaultTextInputType = ui::TEXT_INPUT_TYPE_TEXT;
                        == static_cast<int>(np_name), \
                    mismatching_enums)
 
+#define COMPILE_ASSERT_PRINT_SCALING_MATCHING_ENUM(webkit_name, pp_name) \
+    COMPILE_ASSERT(static_cast<int>(webkit_name) \
+                       == static_cast<int>(pp_name), \
+                   mismatching_enums)
+
 // <embed>/<object> attributes.
 const char kWidth[] = "width";
 const char kHeight[] = "height";
@@ -232,6 +238,14 @@ COMPILE_ASSERT_MATCHING_ENUM(TypeGrabbing, PP_MOUSECURSOR_TYPE_GRABBING);
 // Do not assert WebCursorInfo::TypeCustom == PP_CURSORTYPE_CUSTOM;
 // PP_CURSORTYPE_CUSTOM is pinned to allow new cursor types.
 
+COMPILE_ASSERT_PRINT_SCALING_MATCHING_ENUM(WebKit::WebPrintScaleNone,
+                                           PP_PRINTSCALINGOPTION_NONE);
+COMPILE_ASSERT_PRINT_SCALING_MATCHING_ENUM(
+    WebKit::WebPrintFitToPrintableArea,
+    PP_PRINTSCALINGOPTION_FIT_TO_PRINTABLE_AREA);
+COMPILE_ASSERT_PRINT_SCALING_MATCHING_ENUM(WebKit::WebPrintSourceSize,
+                                           PP_PRINTSCALINGOPTION_SOURCE_SIZE);
+
 // Sets |*security_origin| to be the WebKit security origin associated with the
 // document containing the given plugin instance. On success, returns true. If
 // the instance is invalid, returns false and |*security_origin| will be
@@ -1135,7 +1149,10 @@ bool PluginInstance::IsPrintScalingDisabled() {
   return plugin_print_interface_->IsScalingDisabled(pp_instance()) == PP_TRUE;
 }
 
-int PluginInstance::PrintBegin(const gfx::Rect& printable_area,
+int PluginInstance::PrintBegin(const gfx::Rect& content_area,
+                               const gfx::Rect& printable_area,
+                               const gfx::Size& paper_size,
+                               WebPrintScalingOption print_scaling_option,
                                int printer_dpi) {
   // Keep a reference on the stack. See NOTE above.
   scoped_refptr<PluginInstance> ref(this);
@@ -1146,13 +1163,16 @@ int PluginInstance::PrintBegin(const gfx::Rect& printable_area,
     NOTREACHED();
     return 0;
   }
-
   int num_pages = 0;
   PP_PrintSettings_Dev print_settings;
   print_settings.printable_area = PP_FromGfxRect(printable_area);
+  print_settings.content_area = PP_FromGfxRect(content_area);
+  print_settings.paper_size = PP_FromGfxSize(paper_size);
   print_settings.dpi = printer_dpi;
   print_settings.orientation = PP_PRINTORIENTATION_NORMAL;
   print_settings.grayscale = PP_FALSE;
+  print_settings.print_scaling_option = static_cast<PP_PrintScalingOption_Dev>(
+      print_scaling_option);
   print_settings.format = format;
   num_pages = plugin_print_interface_->Begin(pp_instance(),
                                              &print_settings);