Implement window.print() on Android

chrome/android/java/src/org/chromium/chrome/browser/Tab.java

Index: chrome/android/java/src/org/chromium/chrome/browser/Tab.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/Tab.java b/chrome/android/java/src/org/chromium/chrome/browser/Tab.java
index b4b54aa54cb18da412225d798d7f485ce4883227..10e6521bfe4d161fc049fa27b0af39e7316165c3 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/Tab.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/Tab.java
@@ -26,6 +26,7 @@ import org.chromium.chrome.browser.contextmenu.EmptyChromeContextMenuItemDelegat
 import org.chromium.chrome.browser.dom_distiller.DomDistillerFeedbackReporter;
 import org.chromium.chrome.browser.infobar.AutoLoginProcessor;
 import org.chromium.chrome.browser.infobar.InfoBarContainer;
+import org.chromium.chrome.browser.printing.TabPrinter;
 import org.chromium.chrome.browser.profiles.Profile;
 import org.chromium.chrome.browser.toolbar.ToolbarModel;
 import org.chromium.content.browser.ContentView;
@@ -34,6 +35,9 @@ import org.chromium.content.browser.ContentViewCore;
 import org.chromium.content.browser.WebContentsObserver;
 import org.chromium.content_public.browser.LoadUrlParams;
 import org.chromium.content_public.browser.WebContents;
+import org.chromium.printing.PrintManagerDelegateImpl;
+import org.chromium.printing.PrintingController;
+import org.chromium.printing.PrintingControllerImpl;
 import org.chromium.ui.base.Clipboard;
 import org.chromium.ui.base.WindowAndroid;
 import org.chromium.ui.gfx.DeviceDisplayInfo;
@@ -554,6 +558,15 @@ public class Tab {
         return nativePrint(mNativeTabAndroid);
     }
 
+    @CalledByNative
+    public void setPendingPrint() {
+        PrintingController printingController = PrintingControllerImpl.getInstance();
+        if (printingController != null) {

[mlamouri (slow - plz ping), 2014/11/27 20:26:02]

Generally speaking, instead of:
function() {
  if (foo) {
    // do
    // stuff
  }
}

You might prefer:
function() {
  if (!foo)
    return;
  // do
  // stuff
}

[dgn, 2014/11/28 11:51:15]

Done.

+            printingController.setPendingPrint(new TabPrinter(this),
+                    new PrintManagerDelegateImpl(mContext));
+        }
+    }
+
     /**
      * Reloads the current page content.
      */