Use stub GL draw/clear calls for browser tests that do not need pixels.

chrome/browser/chromeos/file_manager/file_manager_browsertest.cc

Index: chrome/browser/chromeos/file_manager/file_manager_browsertest.cc
diff --git a/chrome/browser/chromeos/file_manager/file_manager_browsertest.cc b/chrome/browser/chromeos/file_manager/file_manager_browsertest.cc
index 2f34ce1f0bd9b560f52ba606953fa865f1e29247..bf9361be0d35fe7ba854cb40e8ff98bea1a4c80b 100644
--- a/chrome/browser/chromeos/file_manager/file_manager_browsertest.cc
+++ b/chrome/browser/chromeos/file_manager/file_manager_browsertest.cc
@@ -488,14 +488,6 @@ class FileManagerBrowserTest :
       drive_volume_(std::tr1::get<0>(GetParam()) != IN_GUEST_MODE ?
                     new DriveTestVolume() : NULL) {}
 
-  virtual void SetUp() OVERRIDE {
-    // TODO(danakj): The GPU Video Decoder needs real GL bindings.
-    // crbug.com/269087
-    UseRealGLBindings();
-
-    ExtensionApiTest::SetUp();
-  }
-
   virtual void SetUpInProcessBrowserTestFixture() OVERRIDE;
 
   virtual void SetUpOnMainThread() OVERRIDE;