Remove usage of [Client=..] from web_ui_mojo test.

content/browser/webui/web_ui_mojo_browsertest.cc

Index: content/browser/webui/web_ui_mojo_browsertest.cc
diff --git a/content/browser/webui/web_ui_mojo_browsertest.cc b/content/browser/webui/web_ui_mojo_browsertest.cc
index 722f2a5e3da34a9d83fe929153da1e71a8f348ee..274d4c1b7041eacf15e1c126351a34a541e41f0e 100644
--- a/content/browser/webui/web_ui_mojo_browsertest.cc
+++ b/content/browser/webui/web_ui_mojo_browsertest.cc
@@ -67,7 +67,13 @@ class BrowserTargetImpl : public mojo::InterfaceImpl<BrowserTarget> {
   ~BrowserTargetImpl() override {}
 
   // mojo::InterfaceImpl<BrowserTarget> overrides:
-  void PingResponse() override { NOTREACHED(); }
+  void Start(const mojo::Closure& closure) override {
+    closure.Run();
+  }
+  void Stop() override {
+    got_message = true;
+    run_loop_->Quit();
+  }
 
  protected:
   base::RunLoop* run_loop_;
@@ -76,23 +82,6 @@ class BrowserTargetImpl : public mojo::InterfaceImpl<BrowserTarget> {
   DISALLOW_COPY_AND_ASSIGN(BrowserTargetImpl);
 };
 
-class PingBrowserTargetImpl : public BrowserTargetImpl {
- public:
-  explicit PingBrowserTargetImpl(base::RunLoop* run_loop)
-      : BrowserTargetImpl(run_loop) {}
-
-  ~PingBrowserTargetImpl() override {}
-
-  // Quit the RunLoop when called.
-  void PingResponse() override {
-    got_message = true;
-    run_loop_->Quit();
-  }
-
- private:
-  DISALLOW_COPY_AND_ASSIGN(PingBrowserTargetImpl);
-};
-
 // WebUIController that sets up mojo bindings.
 class TestWebUIController : public WebUIController {
  public:
@@ -123,7 +112,7 @@ class PingTestWebUIController : public TestWebUIController {
    ~PingTestWebUIController() override {}
 
   // WebUIController overrides:
-   void RenderViewCreated(RenderViewHost* render_view_host) override {
+  void RenderViewCreated(RenderViewHost* render_view_host) override {
     render_view_host->GetMainFrame()->GetServiceRegistry()->
         AddService<BrowserTarget>(base::Bind(
             &PingTestWebUIController::CreateHandler, base::Unretained(this)));
@@ -131,8 +120,7 @@ class PingTestWebUIController : public TestWebUIController {
 
   void CreateHandler(mojo::InterfaceRequest<BrowserTarget> request) {
     browser_target_.reset(mojo::WeakBindToRequest(
-        new PingBrowserTargetImpl(run_loop_), &request));
-    browser_target_->client()->Ping();
+        new BrowserTargetImpl(run_loop_), &request));
   }
 
  private: