content: implement unittests backend for Ozone GBM

content/test/content_test_suite.cc

Index: content/test/content_test_suite.cc
diff --git a/content/test/content_test_suite.cc b/content/test/content_test_suite.cc
index 116bd0ce472064bf8445bc610e3bafd172f4f860..b7fab5bc77f15a7a55a01fa675ddf83a0971c683 100644
--- a/content/test/content_test_suite.cc
+++ b/content/test/content_test_suite.cc
@@ -35,6 +35,14 @@
 #include "content/browser/android/in_process_surface_texture_manager.h"
 #endif
 
+#if defined(USE_OZONE)
+#include "base/bind.h"
+#include "base/synchronization/waitable_event.h"
+#include "base/threading/thread.h"
+#include "ui/ozone/public/ozone_gpu_test_helper.h"
+#include "ui/ozone/public/ozone_platform.h"
+#endif
+
 namespace content {
 namespace {
 
@@ -60,6 +68,20 @@ class TestInitializationListener : public testing::EmptyTestEventListener {
 
 }  // namespace
 
+#if defined(USE_OZONE)
+struct ContentTestSuite::Impl {
+  Impl()
+      : ui_thread_("TestUIThread"),
+        gpu_ipc_thread_("TestGpuIpcThread"),
+        gpu_helper_(new ui::OzoneGpuTestHelper) {}
+  // On Ozone, the backend requires task runner.
+  base::MessageLoopForUI message_loop_;
+  base::Thread ui_thread_;
+  base::Thread gpu_ipc_thread_;
+  scoped_ptr<ui::OzoneGpuTestHelper> gpu_helper_;

[vignatti (out of this project), 2015/06/24 22:16:17]

would be better if we had the full GPU service in place, so perf tests could ran
just a like in a real setup.

[dshwang, 2015/06/25 05:38:40]

reveman, what do you think about vignatti's opinion?

+};
+#endif
+
 ContentTestSuite::ContentTestSuite(int argc, char** argv)
     : ContentTestSuiteBase(argc, argv) {
 }
@@ -67,6 +89,17 @@ ContentTestSuite::ContentTestSuite(int argc, char** argv)
 ContentTestSuite::~ContentTestSuite() {
 }
 
+#if defined(USE_OZONE)
+void InitializeUI(base::WaitableEvent* done) {
+  ui::OzonePlatform::InitializeForUI();
+  done->Signal();
+}
+
+void Noop(base::WaitableEvent* done) {
+  done->Signal();
+}
+#endif
+
 void ContentTestSuite::Initialize() {
 #if defined(OS_MACOSX)
   base::mac::ScopedNSAutoreleasePool autorelease_pool;
@@ -79,6 +112,22 @@ void ContentTestSuite::Initialize() {
   gfx::InitDeviceScaleFactor(1.0f);
 #endif
 
+  bool is_child_process = base::CommandLine::ForCurrentProcess()->HasSwitch(
+      switches::kTestChildProcess);
+#if defined(USE_OZONE)
+  if (!is_child_process) {
+    ozone_impl_.reset(new Impl());
+    ozone_impl_->ui_thread_.Start();
+
+    {
+      base::WaitableEvent done(false, false);
+      ozone_impl_->ui_thread_.task_runner()->PostTask(
+          FROM_HERE, base::Bind(&InitializeUI, &done));
+      done.Wait();
+    }
+  }
+#endif
+
   ContentTestSuiteBase::Initialize();
   {
     ContentClient client;
@@ -89,8 +138,8 @@ void ContentTestSuite::Initialize() {
   media::InitializeMediaLibrary();
   // When running in a child process for Mac sandbox tests, the sandbox exists
   // to initialize GL, so don't do it here.
-  if (!base::CommandLine::ForCurrentProcess()->HasSwitch(
-          switches::kTestChildProcess)) {
+  if (!is_child_process) {
+    // This thread is kind of GPU main thread.
     gfx::GLSurface::InitializeOneOffForTests();
     gpu::ApplyGpuDriverBugWorkarounds(base::CommandLine::ForCurrentProcess());
   }
@@ -105,6 +154,25 @@ void ContentTestSuite::Initialize() {
 #if defined(OS_MACOSX) && !defined(OS_IOS)
   IOSurfaceManager::SetInstance(InProcessIOSurfaceManager::GetInstance());
 #endif
+#if defined(USE_OZONE)
+  if (!is_child_process) {
+    // Separate GPU main thread (i.e. this thread) and GPU IPC thread because we
+    // must wait for all IPC for initialization done. Note here and each
+    // unittest are on the same stack, so there is no way to handle IPC before
+    // running each unittest.
+    ozone_impl_->gpu_ipc_thread_.Start();
+    ozone_impl_->gpu_helper_->Initialize(
+        ozone_impl_->ui_thread_.task_runner(),
+        ozone_impl_->gpu_ipc_thread_.task_runner());
+    {
+      base::WaitableEvent done(false, false);
+      ozone_impl_->gpu_ipc_thread_.task_runner()->PostTask(
+          FROM_HERE, base::Bind(&Noop, &done));
+      // Wait for all IPC for initialization done
+      done.Wait();
+    }
+  }
+#endif
 }
 
 }  // namespace content