[android] Resize the android_webview if it's 0x0 initially.

android_webview/native/aw_web_contents_delegate.cc

Index: android_webview/native/aw_web_contents_delegate.cc
diff --git a/android_webview/native/aw_web_contents_delegate.cc b/android_webview/native/aw_web_contents_delegate.cc
index 78849a90dd808383d52dbaee149fab87ecd104b3..8c76bc401bd193d7622f74f80c9eeba9786a39c0 100644
--- a/android_webview/native/aw_web_contents_delegate.cc
+++ b/android_webview/native/aw_web_contents_delegate.cc
@@ -122,6 +122,17 @@ void AwWebContentsDelegate::ActivateContents(content::WebContents* contents) {
   }
 }
 
+void AwWebContentsDelegate::UpdatePreferredSize(
+    WebContents* web_contents,
+    const gfx::Size& pref_size) {
+  JNIEnv* env = AttachCurrentThread();
+  ScopedJavaLocalRef<jobject> obj = GetJavaDelegate(env);
+  if (obj.is_null())
+    return;
+  return Java_AwWebContentsDelegate_updatePreferredSize(
+      env, obj.obj(), pref_size.width(), pref_size.height());
+}
+
 bool RegisterAwWebContentsDelegate(JNIEnv* env) {
   return RegisterNativesImpl(env);
 }