Remove unused plugin code triggering synthetic user activation.

Bug: 848778
Change-Id: If8b8f9e8ee29ac3d7acae751e2d062a7e838bf40
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2507512Reviewed-by: Daniel Cheng <dcheng@chromium.org>
Commit-Queue: Mustaq Ahmed <mustaq@chromium.org>
Cr-Commit-Position: refs/heads/master@{#822879}

third_party/blink/public/mojom/frame/user_activation_notification_type.mojom

@@ -24,9 +24,8 @@ enum UserActivationNotificationType {
   // An extension API caused the notification call through GuestView.
   kExtensionGuestView,
 
-  // An extension messaging API caused the notification call.  This enum value
-  // is deprecated by more specific enums kExtensionMessaging* below, we are
-  // preserving this enum value only for UMA consistency.
+  // An extension messaging API caused the notification call.  Deprecated,
+  // preserved only for UMA consistency.  See more specific enums below.
   kExtensionMessaging,
 
   // A media API caused the notification call.
@@ -35,7 +34,8 @@ enum UserActivationNotificationType {
   // An NFS API caused the notification call.
   kNativeFileSystem,
 
-  // A plugin API caused the notification call.
+  // A plugin API caused the notification call.  Deprecated, preserved only for
+  // UMA consistency.
   kPlugin,
 
   // A test API caused the notification call.  This should not affect

third_party/blink/public/web/web_plugin_container.h

@@ -46,7 +46,6 @@ class WebDocument;
 class WebElement;
 class WebPlugin;
 class WebString;
-class WebURL;
 class WebURLRequest;
 class WebDOMMessageEvent;
 struct WebRect;
@@ -92,11 +91,6 @@ class WebPluginContainer {
   // containing the plugin as a native v8 object.
   virtual v8::Local<v8::Object> V8ObjectForElement() = 0;
 
-  // Executes a "javascript:" URL on behalf of the plugin in the context
-  // of the frame containing the plugin.  Returns the result of script
-  // execution, if any.
-  virtual WebString ExecuteScriptURL(const WebURL&, bool popups_allowed) = 0;
-
   // Loads an URL in the specified frame (or the frame containing this
   // plugin if target is empty).  If notifyNeeded is true, then upon
   // completion, WebPlugin::didFinishLoadingFrameRequest is called if the

third_party/blink/renderer/core/exported/web_plugin_container_impl.cc

@@ -38,7 +38,6 @@
 #include "third_party/blink/public/platform/web_drag_data.h"
 #include "third_party/blink/public/platform/web_rect.h"
 #include "third_party/blink/public/platform/web_string.h"
-#include "third_party/blink/public/platform/web_url.h"
 #include "third_party/blink/public/platform/web_url_error.h"
 #include "third_party/blink/public/platform/web_url_request.h"
 #include "third_party/blink/public/web/web_document.h"
@@ -584,45 +583,6 @@ v8::Local<v8::Object> WebPluginContainerImpl::V8ObjectForElement() {
   return v8::Local<v8::Object>::Cast(v8value);
 }
 
-// TODO(hiroshige): Consider merging with LocalFrame::ExecuteJavaScriptURL().
-WebString WebPluginContainerImpl::ExecuteScriptURL(const WebURL& url,
-                                                   bool popups_allowed) {
-  LocalDOMWindow* window = element_->GetDocument().domWindow();
-  if (!window)
-    return WebString();
-
-  const KURL& kurl = url;
-  DCHECK(kurl.ProtocolIs("javascript"));
-
-  String script = DecodeURLEscapeSequences(kurl.GetString(),
-                                           DecodeURLMode::kUTF8OrIsomorphic);
-
-  if (!element_->GetExecutionContext()->GetContentSecurityPolicy()->AllowInline(
-          ContentSecurityPolicy::InlineType::kNavigation, element_, script,
-          String() /* nonce */, element_->GetDocument().Url(),
-          OrdinalNumber())) {
-    return WebString();
-  }
-  script = script.Substring(strlen("javascript:"));
-
-  if (popups_allowed) {
-    LocalFrame::NotifyUserActivation(
-        window->GetFrame(),
-        mojom::blink::UserActivationNotificationType::kPlugin);
-  }
-
-  v8::HandleScope handle_scope(window->GetIsolate());
-  v8::Local<v8::Value> result =
-      ClassicScript::CreateUnspecifiedScript(
-          ScriptSourceCode(script, ScriptSourceLocationType::kJavascriptUrl))
-          ->RunScriptAndReturnValue(window);
-
-  // Failure is reported as a null string.
-  if (result.IsEmpty() || !result->IsString())
-    return WebString();
-  return ToCoreString(v8::Local<v8::String>::Cast(result));
-}
-
 void WebPluginContainerImpl::LoadFrameRequest(const WebURLRequest& request,
                                               const WebString& target) {
   LocalDOMWindow* window = element_->GetDocument().domWindow();

third_party/blink/renderer/core/exported/web_plugin_container_impl.h

@@ -126,7 +126,6 @@ class CORE_EXPORT WebPluginContainerImpl final
   void ScheduleAnimation() override;
   void ReportGeometry() override;
   v8::Local<v8::Object> V8ObjectForElement() override;
-  WebString ExecuteScriptURL(const WebURL&, bool popups_allowed) override;
   void LoadFrameRequest(const WebURLRequest&, const WebString& target) override;
   bool IsRectTopmost(const WebRect&) override;
   void RequestTouchEventType(TouchEventRequestType) override;