Implement window.print() on Android

chrome/browser/android/tab_android.cc

Index: chrome/browser/android/tab_android.cc
diff --git a/chrome/browser/android/tab_android.cc b/chrome/browser/android/tab_android.cc
index 0b6cd7b219c9d2bb7de189bfe5b6c5a9f6252cef..bed8cdc0cd25849bb690479f3d9a77b4bd1aa161 100644
--- a/chrome/browser/android/tab_android.cc
+++ b/chrome/browser/android/tab_android.cc
@@ -635,19 +635,29 @@ void TabAndroid::SetActiveNavigationEntryTitleForUrl(JNIEnv* env,
 }
 
 bool TabAndroid::Print(JNIEnv* env, jobject obj) {
-  if (!web_contents())
+  LOG(INFO) << "DGN TabAndroid::Print";
+  if (!web_contents()) {
+    LOG(INFO) << "DGN TabAndroid::Print - No webcontents";
     return false;
+  }
 
   printing::PrintViewManagerBasic::CreateForWebContents(web_contents());
   printing::PrintViewManagerBasic* print_view_manager =
       printing::PrintViewManagerBasic::FromWebContents(web_contents());
-  if (print_view_manager == NULL)
+  if (print_view_manager == NULL) {
+    LOG(INFO) << "DGN TabAndroid::Print - No print_view_manager";
     return false;
+  }
 
   print_view_manager->PrintNow();
   return true;
 }
 
+void TabAndroid::ShowPrintDialog() {
+  JNIEnv* env = base::android::AttachCurrentThread();
+  Java_Tab_showPrintDialog(env, weak_java_tab_.get(env).obj());
+}
+
 ScopedJavaLocalRef<jobject> TabAndroid::GetDefaultFavicon(JNIEnv* env,
                                                           jobject obj) {
   ScopedJavaLocalRef<jobject> bitmap;