aura: Clean up compositor initialization/destruction.

chrome/test/gpu/gpu_feature_browsertest.cc

Index: chrome/test/gpu/gpu_feature_browsertest.cc
diff --git a/chrome/test/gpu/gpu_feature_browsertest.cc b/chrome/test/gpu/gpu_feature_browsertest.cc
index f65f799df06d984b1825b9fc7b74f7c4d055f8dc..b73a383787242d9ca8529027fbc767025acb5d5d 100644
--- a/chrome/test/gpu/gpu_feature_browsertest.cc
+++ b/chrome/test/gpu/gpu_feature_browsertest.cc
@@ -14,7 +14,6 @@
 #include "chrome/common/chrome_paths.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/test/base/in_process_browser_test.h"
-#include "chrome/test/base/test_launcher_utils.h"
 #include "chrome/test/base/tracing.h"
 #include "chrome/test/base/ui_test_utils.h"
 #include "content/public/browser/gpu_data_manager.h"
@@ -24,8 +23,7 @@
 #include "gpu/config/gpu_info.h"
 #include "gpu/config/gpu_test_config.h"
 #include "net/base/net_util.h"
-#include "ui/compositor/compositor_setup.h"
-#include "ui/gl/gl_switches.h"
+#include "ui/gl/gl_implementation.h"
 
 #if defined(OS_MACOSX)
 #include "ui/gl/io_surface_support_mac.h"
@@ -49,7 +47,14 @@ const char kWebGLCreationEvent[] = "DrawingBufferCreation";
 
 class GpuFeatureTest : public InProcessBrowserTest {
  public:
-  GpuFeatureTest() : category_patterns_("test_gpu"), gpu_enabled_(false) {}
+  GpuFeatureTest() : category_patterns_("test_gpu") {}
+
+  virtual void SetUp() OVERRIDE {
+    // We expect to use real GL contexts for these tests.
+    UseRealGLContexts();
+
+    InProcessBrowserTest::SetUp();
+  }
 
   virtual void SetUpInProcessBrowserTestFixture() OVERRIDE {
     base::FilePath test_dir;
@@ -58,18 +63,7 @@ class GpuFeatureTest : public InProcessBrowserTest {
   }
 
   virtual void SetUpCommandLine(CommandLine* command_line) OVERRIDE {
-    // Do not use mesa if real GPU is required.
-    if (!command_line->HasSwitch(switches::kUseGpuInTests)) {
-#if !defined(OS_MACOSX)
-      CHECK(test_launcher_utils::OverrideGLImplementation(
-          command_line, gfx::kGLImplementationOSMesaName)) <<
-          "kUseGL must not be set by test framework code!";
-#endif
-    } else {
-      gpu_enabled_ = true;
-    }
     command_line->AppendSwitch(switches::kDisablePopupBlocking);
-    ui::DisableTestCompositor();
     command_line->AppendSwitchASCII(switches::kWindowSize, "400,300");
   }
 
@@ -85,7 +79,7 @@ class GpuFeatureTest : public InProcessBrowserTest {
                bool new_tab) {
 #if defined(OS_LINUX) && !defined(NDEBUG)
     // Bypass tests on GPU Linux Debug bots.
-    if (gpu_enabled_)
+    if (gfx::GetGLImplementation() != gfx::kGLImplementationOSMesaGL)
       return;
 #endif
 
@@ -117,7 +111,7 @@ class GpuFeatureTest : public InProcessBrowserTest {
                     bool event_expected = false) {
 #if defined(OS_LINUX) && !defined(NDEBUG)
     // Bypass tests on GPU Linux Debug bots.
-    if (gpu_enabled_)
+    if (gfx::GetGLImplementation() != gfx::kGLImplementationOSMesaGL)
       return;
 #endif
 #if defined(OS_MACOSX)
@@ -173,7 +167,6 @@ class GpuFeatureTest : public InProcessBrowserTest {
   scoped_ptr<TraceAnalyzer> analyzer_;
   std::string category_patterns_;
   std::string trace_events_json_;
-  bool gpu_enabled_;
 };
 
 #if defined(OS_WIN) || defined(ADDRESS_SANITIZER)
@@ -308,9 +301,7 @@ IN_PROC_BROWSER_TEST_F(GpuFeatureTest, MultisamplingAllowed) {
       gpu::GPU_FEATURE_TYPE_MULTISAMPLING));
 
   // Multisampling is not supported if running on top of osmesa.
-  std::string use_gl = CommandLine::ForCurrentProcess()->GetSwitchValueASCII(
-      switches::kUseGL);
-  if (use_gl == gfx::kGLImplementationOSMesaName)
+  if (gfx::GetGLImplementation() != gfx::kGLImplementationOSMesaGL)
     return;
 
   // Linux Intel uses mesa driver, where multisampling is not supported.
@@ -558,4 +549,4 @@ IN_PROC_BROWSER_TEST_F(GpuFeatureTest, IOSurfaceReuse) {
 }
 #endif
 
-}  // namespace anonymous
+}  // namespace