Throw exception when initialization failed.

android_webview/java/src/org/chromium/android_webview/AwContents.java

Index: android_webview/java/src/org/chromium/android_webview/AwContents.java
diff --git a/android_webview/java/src/org/chromium/android_webview/AwContents.java b/android_webview/java/src/org/chromium/android_webview/AwContents.java
index 2e83ca646139dcf0e266578dcb2567cd0688dc21..5ca0df1aab4fe5c438c27f11601dde6e539bdcd6 100644
--- a/android_webview/java/src/org/chromium/android_webview/AwContents.java
+++ b/android_webview/java/src/org/chromium/android_webview/AwContents.java
@@ -25,6 +25,7 @@ import android.webkit.ValueCallback;
 import org.chromium.base.CalledByNative;
 import org.chromium.base.JNINamespace;
 import org.chromium.base.ThreadUtils;
+import org.chromium.content.browser.AndroidBrowserProcessInitException;
 import org.chromium.content.browser.ContentSettings;
 import org.chromium.content.browser.ContentViewCore;
 import org.chromium.content.browser.LoadUrlParams;
@@ -273,7 +274,8 @@ public class AwContents {
             ContentViewCore.InternalAccessDelegate internalAccessAdapter,
             AwContentsClient contentsClient,
             NativeWindow nativeWindow, boolean privateBrowsing,
-            boolean isAccessFromFileURLsGrantedByDefault) {
+            boolean isAccessFromFileURLsGrantedByDefault)
+            throws AndroidBrowserProcessInitException {
         mContainerView = containerView;
         mInternalAccessAdapter = internalAccessAdapter;
         // Note that ContentViewCore must be set up before AwContents, as ContentViewCore
@@ -422,13 +424,15 @@ public class AwContents {
      * Called on the "source" AwContents that is opening the popup window to
      * provide the AwContents to host the pop up content.
      */
-    public void supplyContentsForPopup(AwContents newContents) {
+    public void supplyContentsForPopup(AwContents newContents)
+            throws AndroidBrowserProcessInitException {
         int popupWebContents = nativeReleasePopupWebContents(mNativeAwContents);
         assert popupWebContents != 0;
         newContents.setNewWebContents(popupWebContents);
     }
 
-    private void setNewWebContents(int newWebContentsPtr) {
+    private void setNewWebContents(int newWebContentsPtr)
+            throws AndroidBrowserProcessInitException {
         // When setting a new WebContents, we new up a ContentViewCore that will
         // wrap it and then swap it.
         ContentViewCore newCore = new ContentViewCore(mContainerView.getContext(),