Auto merge of #11179 - asajeffrey:webdriver-resize-window, r=jgraham

Implemented webdriver SetWindowSize.

Thank you for contributing to Servo! Please replace each `[ ]` by `[X]` when the step is complete, and replace `__` with appropriate data:
- [X] `./mach build -d` does not report any errors
- [X] `./mach test-tidy` does not report any errors
- [X] These changes fix #10467 (github issue number if applicable).

Either:
- [ ] There are tests for these changes OR
- [X] These changes do not require tests because the new tests are in https://github.com/w3c/web-platform-tests/pull/3024

Pull requests that do not address these steps are welcome, but they will require additional verification as part of the review process.

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components/script/script_thread.rs

@@ -1045,8 +1045,6 @@ impl ScriptThread {
                 webdriver_handlers::handle_get_frame_id(&context, pipeline_id, frame_id, reply),
             WebDriverScriptCommand::GetUrl(reply) =>
                 webdriver_handlers::handle_get_url(&context, pipeline_id, reply),
-            WebDriverScriptCommand::GetWindowSize(reply) =>
-                webdriver_handlers::handle_get_window_size(&context, pipeline_id, reply),
             WebDriverScriptCommand::IsEnabled(element_id, reply) =>
                 webdriver_handlers::handle_is_enabled(&context, pipeline_id, element_id, reply),
             WebDriverScriptCommand::IsSelected(element_id, reply) =>

components/script/webdriver_handlers.rs

@@ -30,7 +30,7 @@ use ipc_channel::ipc::IpcSender;
 use js::jsapi::JSContext;
 use js::jsapi::{HandleValue, RootedValue};
 use js::jsval::UndefinedValue;
-use msg::constellation_msg::{PipelineId, WindowSizeData};
+use msg::constellation_msg::PipelineId;
 use msg::webdriver_msg::{WebDriverFrameId, WebDriverJSError, WebDriverJSResult, WebDriverJSValue};
 use script_thread::get_browsing_context;
 use url::Url;
@@ -282,14 +282,6 @@ pub fn handle_get_url(context: &BrowsingContext,
     reply.send((*url).clone()).unwrap();
 }
 
-pub fn handle_get_window_size(context: &BrowsingContext,
-                              _pipeline: PipelineId,
-                              reply: IpcSender<Option<WindowSizeData>>) {
-    let window = context.active_window();
-    let size = window.window_size();
-    reply.send(size).unwrap();
-}
-
 pub fn handle_is_enabled(context: &BrowsingContext,
                          pipeline: PipelineId,
                          element_id: String,