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

content/renderer/browser_plugin/browser_plugin_bindings.cc

Index: content/renderer/browser_plugin/browser_plugin_bindings.cc
diff --git a/content/renderer/browser_plugin/browser_plugin_bindings.cc b/content/renderer/browser_plugin/browser_plugin_bindings.cc
index b8aa0ebeaf8de461c3605695e028b881d691656e..56ba737b66047e5a462438c8cdbe0ff669388490 100644
--- a/content/renderer/browser_plugin/browser_plugin_bindings.cc
+++ b/content/renderer/browser_plugin/browser_plugin_bindings.cc
@@ -51,6 +51,7 @@ const char kMinWidthAttribute[] = "minWidth";
 const char kPartitionAttribute[] = "partition";
 const char kReloadMethod[] = "reload";
 const char kRemoveEventListener[] = "removeEventListener";
+const char kSetMediaPermissionMethod[] = "setMediaPermission";
 const char kSrcAttribute[] = "src";
 const char kStopMethod[] = "stop";
 const char kTerminateMethod[] = "terminate";
@@ -496,6 +497,26 @@ class BrowserPluginBindingStop : public BrowserPluginMethodBinding {
   DISALLOW_COPY_AND_ASSIGN(BrowserPluginBindingStop);
 };
 
+class BrowserPluginBindingSetMediaPermission
+    : public BrowserPluginMethodBinding {
+ public:
+  BrowserPluginBindingSetMediaPermission()
+      : BrowserPluginMethodBinding(kSetMediaPermissionMethod, 2) {
+  }
+
+  virtual bool Invoke(BrowserPluginBindings* bindings,
+                      const NPVariant* args,
+                      NPVariant* result) OVERRIDE {
+    int request_id = Int32FromNPVariant(args[0]);
+    bool allow = NPVARIANT_TO_BOOLEAN(args[1]);
+    bindings->instance()->AllowMediaAccess(request_id, allow);
+    return true;
+  }
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(BrowserPluginBindingSetMediaPermission);
+};
+
 class BrowserPluginBindingTerminate : public BrowserPluginMethodBinding {
  public:
   BrowserPluginBindingTerminate()
@@ -539,6 +560,7 @@ BrowserPluginBindings::BrowserPluginBindings(BrowserPlugin* instance)
   method_bindings_.push_back(new BrowserPluginBindingReload);
   method_bindings_.push_back(new BrowserPluginBindingStop);
   method_bindings_.push_back(new BrowserPluginBindingTerminate);
+  method_bindings_.push_back(new BrowserPluginBindingSetMediaPermission);
 }
 
 BrowserPluginBindings::~BrowserPluginBindings() {