[Android WebView] AwContentsClient.shouldCreateWindow callback part 1.

Provide the plumbing from WebContentsDelegate out to AwContentsClient
to allow the embedder to respond to requests to create pop up windows.
For now we only support the embedder blocking the pop up window; code
to support showing the window to follow in a later patch.

Note that the AwResourceDispatcherHostDelegate is refactored to
support lazily checking the AwContentsIoThreadClient, as we may
receive resource requests for the popup window before the Java
side has been entirely hooked up.

Android bots happy.
NOTRY=true

Review URL: https://chromiumcodereview.appspot.com/11362183

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@167933 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 5 insertions, 0 deletions

diff --git a/android_webview/javatests/src/org/chromium/android_webview/test/NullContentsClient.java b/android_webview/javatests/src/org/chromium/android_webview/test/NullContentsClient.java
index 594b322..9245f7f 100644
--- a/android_webview/javatests/src/org/chromium/android_webview/test/NullContentsClient.java
+++ b/android_webview/javatests/src/org/chromium/android_webview/test/NullContentsClient.java
@@ -90,4 +90,9 @@ class NullContentsClient extends AwContentsClient {
     public void onFormResubmission(Message dontResend, Message resend) {
         dontResend.sendToTarget();
     }
+
+    @Override
+    public boolean onCreateWindow(boolean isDialog, boolean isUserGesture) {
+        return false;
+    }
 }