Remove unnecessary code

Bug: 19313118

As part of the "better error reporting for Webview" work, a new public
API was defined for MNC release to report blocked loads. However,
we decided to use WebChromeClient.onConsoleMessage for this case.
Removing the API.

Change-Id: I1a599385f1ecdd10ba5a774b0b2a6b9f4bdcbd95
diff --git a/api/current.txt b/api/current.txt
index 97d52b5..a750f02 100644
--- a/api/current.txt
+++ b/api/current.txt
@@ -37793,7 +37793,6 @@
     method public boolean shouldOverrideUrlLoading(android.webkit.WebView, java.lang.String);
     field public static final int ERROR_AUTHENTICATION = -4; // 0xfffffffc
     field public static final int ERROR_BAD_URL = -12; // 0xfffffff4
-    field public static final int ERROR_BLOCKED = -16; // 0xfffffff0
     field public static final int ERROR_CONNECT = -6; // 0xfffffffa
     field public static final int ERROR_FAILED_SSL_HANDSHAKE = -11; // 0xfffffff5
     field public static final int ERROR_FILE = -13; // 0xfffffff3
diff --git a/api/system-current.txt b/api/system-current.txt
index 831e1e6..96badef 100644
--- a/api/system-current.txt
+++ b/api/system-current.txt
@@ -40438,7 +40438,6 @@
     method public boolean shouldOverrideUrlLoading(android.webkit.WebView, java.lang.String);
     field public static final int ERROR_AUTHENTICATION = -4; // 0xfffffffc
     field public static final int ERROR_BAD_URL = -12; // 0xfffffff4
-    field public static final int ERROR_BLOCKED = -16; // 0xfffffff0
     field public static final int ERROR_CONNECT = -6; // 0xfffffffa
     field public static final int ERROR_FAILED_SSL_HANDSHAKE = -11; // 0xfffffff5
     field public static final int ERROR_FILE = -13; // 0xfffffff3
diff --git a/core/java/android/webkit/WebViewClient.java b/core/java/android/webkit/WebViewClient.java
index 53c7e04..8a2b3fa 100644
--- a/core/java/android/webkit/WebViewClient.java
+++ b/core/java/android/webkit/WebViewClient.java
@@ -200,8 +200,6 @@
     public static final int ERROR_FILE_NOT_FOUND = -14;
     /** Too many requests during this load */
     public static final int ERROR_TOO_MANY_REQUESTS = -15;
-    /** Request blocked by the browser */
-    public static final int ERROR_BLOCKED = -16;
 
     /**
      * Report an error to the host application. These errors are unrecoverable