WebContentObserver::RenderViewCreated should be called for empty document.

JavaBridgeDispatcherHostManager uses RenderViewCreated() to register JavaScript interface.
Also WebView uses this callback to do some initial settings.

BUG=273164

Review URL: https://chromiumcodereview.appspot.com/23600009

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@220291 0039d316-1c4b-4281-b951-d872f2087c98

2 files changed, 37 insertions, 5 deletions

diff --git a/android_webview/javatests/src/org/chromium/android_webview/test/AwContentsTest.java b/android_webview/javatests/src/org/chromium/android_webview/test/AwContentsTest.java
index 6d508ed..bb9d68f 100644
--- a/android_webview/javatests/src/org/chromium/android_webview/test/AwContentsTest.java
+++ b/android_webview/javatests/src/org/chromium/android_webview/test/AwContentsTest.java
@@ -15,6 +15,7 @@ import android.test.suitebuilder.annotation.SmallTest;
 import android.util.Pair;
 
 import org.chromium.android_webview.AwContents;
+import org.chromium.android_webview.AwSettings;
 import org.chromium.android_webview.test.util.CommonResources;
 import org.chromium.base.test.util.DisabledTest;
 import org.chromium.base.test.util.Feature;
@@ -57,7 +58,7 @@ public class AwContentsTest extends AwTestBase {
             return mContentDisposition;
         }
 
-        public String getMimeType() {
+       public String getMimeType() {
             assert getCallCount() > 0;
             return mMimeType;
         }
@@ -417,4 +418,37 @@ public class AwContentsTest extends AwTestBase {
         assertEquals("true", executeJavaScriptAndWaitForResult(awContents, mContentsClient,
               SCRIPT));
     }
+
+
+    static class JavaScriptObject {
+        private CallbackHelper mCallbackHelper;
+        public JavaScriptObject(CallbackHelper callbackHelper) {
+            mCallbackHelper = callbackHelper;
+        }
+
+        public void run() {
+            mCallbackHelper.notifyCalled();
+        }
+    };
+
+    @Feature({"AndroidWebView", "JavaBridge"})
+    @SmallTest
+    public void testJavaBridge() throws Throwable {
+        final AwTestContainerView testView = createAwTestContainerViewOnMainSync(mContentsClient);
+        final CallbackHelper callback = new CallbackHelper();
+
+        runTestOnUiThread(new Runnable() {
+            @Override
+            public void run() {
+                AwContents awContents = testView.getAwContents();
+                AwSettings awSettings = awContents.getSettings();
+                awSettings.setJavaScriptEnabled(true);
+                awContents.addPossiblyUnsafeJavascriptInterface(
+                        new JavaScriptObject(callback), "bridge", null);
+                awContents.evaluateJavaScriptEvenIfNotYetNavigated(
+                        "javascript:window.bridge.run();");
+            }
+        });
+        callback.waitForCallback(0, 1, 20, TimeUnit.SECONDS);
+    }
 }
diff --git a/content/browser/web_contents/web_contents_impl.cc b/content/browser/web_contents/web_contents_impl.cc
index 25b9cf4..578f900 100644
--- a/content/browser/web_contents/web_contents_impl.cc
+++ b/content/browser/web_contents/web_contents_impl.cc
@@ -2873,16 +2873,14 @@ void WebContentsImpl::RenderViewCreated(RenderViewHost* render_view_host) {
       NOTIFICATION_WEB_CONTENTS_RENDER_VIEW_HOST_CREATED,
       Source<WebContents>(this),
       Details<RenderViewHost>(render_view_host));
-  NavigationEntry* entry = controller_.GetActiveEntry();
-  if (!entry)
-    return;
 
   // When we're creating views, we're still doing initial setup, so we always
   // use the pending Web UI rather than any possibly existing committed one.
   if (render_manager_.pending_web_ui())
     render_manager_.pending_web_ui()->RenderViewCreated(render_view_host);
 
-  if (entry->IsViewSourceMode()) {
+  NavigationEntry* entry = controller_.GetActiveEntry();
+  if (entry && entry->IsViewSourceMode()) {
     // Put the renderer in view source mode.
     render_view_host->Send(
         new ViewMsg_EnableViewSourceMode(render_view_host->GetRoutingID()));