Enable page selection for WebView printing

android_webview/native/aw_pdf_exporter.h

Index: android_webview/native/aw_pdf_exporter.h
diff --git a/android_webview/native/aw_pdf_exporter.h b/android_webview/native/aw_pdf_exporter.h
index aa08b5f67d6aa7ac62cd3bf88134a97fe15b74fd..6145e86e4786de6125844dd2544e3e1100917fbc 100644
--- a/android_webview/native/aw_pdf_exporter.h
+++ b/android_webview/native/aw_pdf_exporter.h
@@ -11,6 +11,8 @@
 #include "base/android/scoped_java_ref.h"
 #include "base/macros.h"
 
+#include "printing/page_range.h"
+
 namespace content {
 class WebContents;
 };
@@ -32,11 +34,13 @@ class AwPdfExporter {
   void ExportToPdf(JNIEnv* env,
                    const base::android::JavaParamRef<jobject>& obj,
                    int fd,
+                   jintArray pages,
                    const base::android::JavaParamRef<jobject>& cancel_signal);
 
  private:
   void InitPdfSettings(JNIEnv* env,
                        const base::android::JavaRef<jobject>& obj,
+                       const printing::PageRanges& page_ranges,
                        printing::PrintSettings& settings);
   void DidExportPdf(int fd, bool success);