Properly throw java exceptions from shouldOverrideUrlLoading

base/android/java/src/org/chromium/base/SystemMessageHandler.java

Index: base/android/java/src/org/chromium/base/SystemMessageHandler.java
diff --git a/base/android/java/src/org/chromium/base/SystemMessageHandler.java b/base/android/java/src/org/chromium/base/SystemMessageHandler.java
index ebcc0d908490c0491e7d3a348fe270d87dcbe4b5..abfa2d8abe3a74948b5411f0dd7599d52187e6ee 100644
--- a/base/android/java/src/org/chromium/base/SystemMessageHandler.java
+++ b/base/android/java/src/org/chromium/base/SystemMessageHandler.java
@@ -25,10 +25,12 @@ class SystemMessageHandler extends Handler {
 
     // Native class pointer set by the constructor of the SharedClient native class.
     private long mMessagePumpDelegateNative = 0;
+    private long mMessagePumpNative = 0;
     private long mDelayedScheduledTimeTicks = 0;
 
-    private SystemMessageHandler(long messagePumpDelegateNative) {
+    protected SystemMessageHandler(long messagePumpDelegateNative, long messagePumpNative) {
         mMessagePumpDelegateNative = messagePumpDelegateNative;
+        mMessagePumpNative = messagePumpNative;
     }
 
     @Override
@@ -36,7 +38,8 @@ class SystemMessageHandler extends Handler {
         if (msg.what == DELAYED_SCHEDULED_WORK) {
             mDelayedScheduledTimeTicks = 0;
         }
-        nativeDoRunLoopOnce(mMessagePumpDelegateNative, mDelayedScheduledTimeTicks);
+        nativeDoRunLoopOnce(
+                mMessagePumpDelegateNative, mMessagePumpNative, mDelayedScheduledTimeTicks);
     }
 
     @SuppressWarnings("unused")
@@ -153,10 +156,11 @@ class SystemMessageHandler extends Handler {
     }
 
     @CalledByNative
-    private static SystemMessageHandler create(long messagePumpDelegateNative) {
-        return new SystemMessageHandler(messagePumpDelegateNative);
+    private static SystemMessageHandler create(
+            long messagePumpDelegateNative, long messagePumpNative) {
+        return new SystemMessageHandler(messagePumpDelegateNative, messagePumpNative);
     }
 
     private native void nativeDoRunLoopOnce(
-            long messagePumpDelegateNative, long delayedScheduledTimeTicks);
+            long messagePumpDelegateNative, long messagePumpNative, long delayedScheduledTimeTicks);
 }