[Android WebView] Add auto-grant permissions to WebViewShell.

android_webview/tools/WebViewShell/src/org/chromium/webview_shell/WebViewBrowserActivity.java

Index: android_webview/tools/WebViewShell/src/org/chromium/webview_shell/WebViewBrowserActivity.java
diff --git a/android_webview/tools/WebViewShell/src/org/chromium/webview_shell/WebViewBrowserActivity.java b/android_webview/tools/WebViewShell/src/org/chromium/webview_shell/WebViewBrowserActivity.java
index 56d4fe776231143a8ac61caa7e76b28e8dc91c2f..047a87d9354287a10fd7244eadc3ad07828fda5c 100644
--- a/android_webview/tools/WebViewShell/src/org/chromium/webview_shell/WebViewBrowserActivity.java
+++ b/android_webview/tools/WebViewShell/src/org/chromium/webview_shell/WebViewBrowserActivity.java
@@ -13,6 +13,7 @@ import android.view.View;
 import android.view.View.OnKeyListener;
 import android.view.inputmethod.InputMethodManager;
 import android.webkit.GeolocationPermissions;
+import android.webkit.PermissionRequest;
 import android.webkit.WebChromeClient;
 import android.webkit.WebView;
 import android.webkit.WebViewClient;
@@ -28,6 +29,9 @@ public class WebViewBrowserActivity extends Activity {
     private EditText mUrlBar;
     private WebView mWebView;
 
+    private static final String[] AUTOMATICALLY_GRANT =
+            { PermissionRequest.RESOURCE_VIDEO_CAPTURE, PermissionRequest.RESOURCE_AUDIO_CAPTURE };
+
     @Override
     public void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
@@ -51,6 +55,11 @@ public class WebViewBrowserActivity extends Activity {
                     GeolocationPermissions.Callback callback) {
                 callback.invoke(origin, true, false);
             }
+
+            @Override
+            public void onPermissionRequest(PermissionRequest request) {
+                request.grant(AUTOMATICALLY_GRANT);
+            }
         });
 
         mUrlBar = (EditText) findViewById(R.id.url_field);