ui/compositor: move the browser compositor thread to the ContextFactory

ui/compositor/layer_unittest.cc

Index: ui/compositor/layer_unittest.cc
diff --git a/ui/compositor/layer_unittest.cc b/ui/compositor/layer_unittest.cc
index 52051c1cb00ee4e8624624cf98569924ef825aed..01b93aa3f5b0c6fe63eab888654ac170031d746e 100644
--- a/ui/compositor/layer_unittest.cc
+++ b/ui/compositor/layer_unittest.cc
@@ -91,7 +91,6 @@ class LayerWithRealCompositorTest : public testing::Test {
   virtual void SetUp() OVERRIDE {
     bool enable_pixel_output = true;
     InitializeContextFactoryForTests(enable_pixel_output);
-    Compositor::Initialize();
 
     const gfx::Rect host_bounds(10, 10, 500, 500);
     compositor_host_.reset(TestCompositorHost::Create(host_bounds));
@@ -101,7 +100,6 @@ class LayerWithRealCompositorTest : public testing::Test {
   virtual void TearDown() OVERRIDE {
     compositor_host_.reset();
     TerminateContextFactoryForTests();
-    Compositor::Terminate();
   }
 
   Compositor* GetCompositor() { return compositor_host_->GetCompositor(); }
@@ -400,7 +398,6 @@ class LayerWithDelegateTest : public testing::Test {
   virtual void SetUp() OVERRIDE {
     bool enable_pixel_output = false;
     InitializeContextFactoryForTests(enable_pixel_output);
-    Compositor::Initialize();
 
     const gfx::Rect host_bounds(1000, 1000);
     compositor_host_.reset(TestCompositorHost::Create(host_bounds));
@@ -410,7 +407,6 @@ class LayerWithDelegateTest : public testing::Test {
   virtual void TearDown() OVERRIDE {
     compositor_host_.reset();
     TerminateContextFactoryForTests();
-    Compositor::Terminate();
   }
 
   Compositor* compositor() { return compositor_host_->GetCompositor(); }