<webview>: First stab at implementing media permission request for guests.

content/renderer/browser_plugin/browser_plugin_constants.cc

 // Copyright (c) 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/renderer/browser_plugin/browser_plugin_constants.h"
 
 namespace content {
 
 namespace browser_plugin {
 
 // Method bindings.
 const char kMethodBack[] = "back";
 const char kMethodCanGoBack[] = "canGoBack";
 const char kMethodCanGoForward[] = "canGoForward";
 const char kMethodForward[] = "forward";
 const char kMethodGetProcessId[] = "getProcessId";
 const char kMethodGetRouteId[] = "getRouteId";
 const char kMethodGo[] = "go";
 const char kMethodReload[] = "reload";
+const char kMethodSetMediaPermission[] = "-internal-setMediaPermission";
 const char kMethodStop[] = "stop";
 const char kMethodTerminate[] = "terminate";
 
 // Attributes.
 const char kAttributeAutoSize[] = "autoSize";
 const char kAttributeContentWindow[] = "contentWindow";
 const char kAttributeMaxHeight[] = "maxHeight";
 const char kAttributeMaxWidth[] = "maxWidth";
 const char kAttributeMinHeight[] = "minHeight";
 const char kAttributeMinWidth[] = "minWidth";
 const char kAttributeName[] = "name";
 const char kAttributePartition[] = "partition";
 const char kAttributeSrc[] = "src";
 
 // Events.
 const char kEventExit[] = "exit";
 const char kEventLoadAbort[] = "loadabort";
 const char kEventLoadCommit[] = "loadcommit";
 const char kEventLoadRedirect[] = "loadredirect";
 const char kEventLoadStart[] = "loadstart";
 const char kEventLoadStop[] = "loadstop";
+const char kEventRequestPermission[] = "permissionrequest";
 const char kEventResponsive[] = "responsive";
 const char kEventSizeChanged[] = "sizechanged";
 const char kEventUnresponsive[] = "unresponsive";
 
 // Parameters/properties on events.
 const char kIsTopLevel[] = "isTopLevel";
 const char kNewURL[] = "newUrl";
 const char kNewHeight[] = "newHeight";
 const char kNewWidth[] = "newWidth";
 const char kOldURL[] = "oldUrl";
 const char kOldHeight[] = "oldHeight";
 const char kOldWidth[] = "oldWidth";
+const char kPermission[] = "permission";
+const char kPermissionTypeMedia[] = "media";
 const char kPersistPrefix[] = "persist:";
 const char kProcessId[] = "processId";
 const char kReason[] = "reason";
+const char kRequestId[] = "request_id";
 const char kURL[] = "url";
 
 // Error messages.
 const char kErrorAlreadyNavigated[] =
     "The object has already navigated, so its partition cannot be changed.";
 const char kErrorInvalidPartition[] =
     "Invalid partition attribute.";
 
 // Other.
 const int kInstanceIDNone = 0;
 
 }  // namespace browser_plugin
 
 }  // namespace content