Revert of Replace IPC messages in layout_test_render_frame_observer.

content/shell/renderer/layout_test/layout_test_render_frame_observer.cc

Index: content/shell/renderer/layout_test/layout_test_render_frame_observer.cc
diff --git a/content/shell/renderer/layout_test/layout_test_render_frame_observer.cc b/content/shell/renderer/layout_test/layout_test_render_frame_observer.cc
index 0f8aaa0c5ec065f038d9565fd6d3840bcd8dccc1..4417b57ffa342cc971e3e0c685c4ecbec85b1c95 100644
--- a/content/shell/renderer/layout_test/layout_test_render_frame_observer.cc
+++ b/content/shell/renderer/layout_test/layout_test_render_frame_observer.cc
@@ -8,7 +8,6 @@
 
 #include "components/test_runner/web_test_interfaces.h"
 #include "components/test_runner/web_test_runner.h"
-#include "content/public/common/associated_interface_registry.h"
 #include "content/public/renderer/render_frame.h"
 #include "content/shell/common/shell_messages.h"
 #include "content/shell/renderer/layout_test/blink_test_runner.h"
@@ -20,28 +19,36 @@
 
 LayoutTestRenderFrameObserver::LayoutTestRenderFrameObserver(
     RenderFrame* render_frame)
-    : RenderFrameObserver(render_frame), binding_(this) {
+    : RenderFrameObserver(render_frame) {
   render_frame->GetWebFrame()->setContentSettingsClient(
       LayoutTestRenderThreadObserver::GetInstance()
           ->test_interfaces()
           ->TestRunner()
           ->GetWebContentSettings());
-  render_frame->GetAssociatedInterfaceRegistry()->AddInterface(base::Bind(
-      &LayoutTestRenderFrameObserver::BindRequest, base::Unretained(this)));
 }
 
-LayoutTestRenderFrameObserver::~LayoutTestRenderFrameObserver() = default;
+bool LayoutTestRenderFrameObserver::OnMessageReceived(
+    const IPC::Message& message) {
+  bool handled = true;
+  IPC_BEGIN_MESSAGE_MAP(LayoutTestRenderFrameObserver, message)
+    IPC_MESSAGE_HANDLER(ShellViewMsg_LayoutDumpRequest, OnLayoutDumpRequest)
+    IPC_MESSAGE_HANDLER(ShellViewMsg_ReplicateTestConfiguration,
+                        OnReplicateTestConfiguration)
+    IPC_MESSAGE_HANDLER(ShellViewMsg_SetTestConfiguration,
+                        OnSetTestConfiguration)
+    IPC_MESSAGE_HANDLER(ShellViewMsg_SetupSecondaryRenderer,
+                        OnSetupSecondaryRenderer)
+    IPC_MESSAGE_UNHANDLED(handled = false)
+  IPC_END_MESSAGE_MAP()
 
-void LayoutTestRenderFrameObserver::BindRequest(
-    mojom::LayoutTestControlAssociatedRequest request) {
-  binding_.Bind(std::move(request));
+  return handled;
 }
 
 void LayoutTestRenderFrameObserver::OnDestruct() {
   delete this;
 }
 
-void LayoutTestRenderFrameObserver::LayoutDumpRequest() {
+void LayoutTestRenderFrameObserver::OnLayoutDumpRequest() {
   std::string dump =
       LayoutTestRenderThreadObserver::GetInstance()
           ->test_interfaces()
@@ -50,19 +57,19 @@
   Send(new ShellViewHostMsg_LayoutDumpResponse(routing_id(), dump));
 }
 
-void LayoutTestRenderFrameObserver::ReplicateTestConfiguration(
-    mojom::ShellTestConfigurationPtr config) {
+void LayoutTestRenderFrameObserver::OnReplicateTestConfiguration(
+    const ShellTestConfiguration& test_config) {
   BlinkTestRunner::Get(render_frame()->GetRenderView())
-      ->OnReplicateTestConfiguration(std::move(config));
+      ->OnReplicateTestConfiguration(test_config);
 }
 
-void LayoutTestRenderFrameObserver::SetTestConfiguration(
-    mojom::ShellTestConfigurationPtr config) {
+void LayoutTestRenderFrameObserver::OnSetTestConfiguration(
+    const ShellTestConfiguration& test_config) {
   BlinkTestRunner::Get(render_frame()->GetRenderView())
-      ->OnSetTestConfiguration(std::move(config));
+      ->OnSetTestConfiguration(test_config);
 }
 
-void LayoutTestRenderFrameObserver::SetupSecondaryRenderer() {
+void LayoutTestRenderFrameObserver::OnSetupSecondaryRenderer() {
   BlinkTestRunner::Get(render_frame()->GetRenderView())
       ->OnSetupSecondaryRenderer();
 }