Fixup browser to use WebView proxy

Has to escape out to WebViewClassic whenever it needs a hidden API.

Interdepends on https://android-git.corp.google.com/g/165608

Change-Id: Ic61dd7f57f75381864075605d5901f2688648cbd
diff --git a/src/com/android/browser/PhoneUi.java b/src/com/android/browser/PhoneUi.java
index ee5ca40..5afb9c4 100644
--- a/src/com/android/browser/PhoneUi.java
+++ b/src/com/android/browser/PhoneUi.java
@@ -38,6 +38,7 @@
 import android.view.ViewGroup;
 import android.view.accessibility.AccessibilityEvent;
 import android.webkit.WebView;
+import android.webkit.WebViewClassic;
 import android.widget.FrameLayout;
 import android.widget.ImageView;
 
@@ -169,7 +170,7 @@
         } else {
             // check if title bar is already attached by animation
             if (mTitleBar.getParent() == null) {
-                view.setEmbeddedTitleBar(mTitleBar);
+                WebViewClassic.fromWebView(view).setEmbeddedTitleBar(mTitleBar);
             }
         }
         if (tab.isInVoiceSearchMode()) {
@@ -287,7 +288,7 @@
             mPieControl.attachToContainer(mContentView);
             WebView web = getWebView();
             if (web != null) {
-                web.setEmbeddedTitleBar(null);
+                WebViewClassic.fromWebView(web).setEmbeddedTitleBar(null);
             }
         } else {
             if (mPieControl != null) {
@@ -299,7 +300,7 @@
                 if ((mTitleBar != null) && (mTitleBar.getParent() != null)) {
                     ((ViewGroup) mTitleBar.getParent()).removeView(mTitleBar);
                 }
-                web.setEmbeddedTitleBar(mTitleBar);
+                WebViewClassic.fromWebView(web).setEmbeddedTitleBar(mTitleBar);
             }
             setTitleGravity(Gravity.NO_GRAVITY);
         }