OOPIF support for layout test pixel dumps.

content/shell/renderer/layout_test/blink_test_runner.cc

Index: content/shell/renderer/layout_test/blink_test_runner.cc
diff --git a/content/shell/renderer/layout_test/blink_test_runner.cc b/content/shell/renderer/layout_test/blink_test_runner.cc
index 39c1e32df3f613121db58a49038bb68c4c3a9fe6..d98ee062c2bf1df27c8348b2f366d54bed2612d2 100644
--- a/content/shell/renderer/layout_test/blink_test_runner.cc
+++ b/content/shell/renderer/layout_test/blink_test_runner.cc
@@ -822,6 +822,7 @@ bool BlinkTestRunner::OnMessageReceived(const IPC::Message& message) {
     IPC_MESSAGE_HANDLER(ShellViewMsg_ReplyBluetoothManualChooserEvents,
                         OnReplyBluetoothManualChooserEvents)
     IPC_MESSAGE_HANDLER(ShellViewMsg_LayoutDumpCompleted, OnLayoutDumpCompleted)
+    IPC_MESSAGE_HANDLER(ShellViewMsg_PixelsDumpResult, OnPixelsDumpResult)
     IPC_MESSAGE_UNHANDLED(handled = false)
   IPC_END_MESSAGE_MAP()
 
@@ -916,6 +917,21 @@ void BlinkTestRunner::OnLayoutDumpCompleted(std::string completed_layout_dump) {
   CaptureDumpContinued();
 }
 
+void BlinkTestRunner::DumpPixelsAsync(
+    base::OnceCallback<void(const SkBitmap&)> callback) {
+  DCHECK(!callback.is_null());  // Caller should verify.
+  CHECK(pixels_dump_callback_.is_null())
+      << "Only one pixel dump at a time is supported.";
+
+  pixels_dump_callback_ = std::move(callback);
+  Send(new ShellViewHostMsg_InitiatePixelsDump(routing_id()));
+}
+
+void BlinkTestRunner::OnPixelsDumpResult(const SkBitmap& result) {
+  std::move(pixels_dump_callback_).Run(result);
+  pixels_dump_callback_.Reset();
+}
+
 void BlinkTestRunner::CaptureDumpContinued() {
   test_runner::WebTestInterfaces* interfaces =
       LayoutTestRenderThreadObserver::GetInstance()->test_interfaces();