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

chrome/browser/extensions/api/tab_capture/tab_capture_apitest.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "base/basictypes.h"
 #include "base/command_line.h"
 #if defined(OS_MACOSX)
 #include "base/mac/mac_util.h"
 #endif
 #include "base/strings/stringprintf.h"
@@ skipping 16 matching lines @@
 #include "extensions/common/feature_switch.h"
 #include "extensions/common/features/feature.h"
 #include "ui/compositor/compositor_switches.h"
 
 namespace {
 
 const char kExtensionId[] = "ddchlicdkolnonkihahngkmmmjnjlkkf";
 
 class TabCaptureApiTest : public ExtensionApiTest {
  public:
-  TabCaptureApiTest() {}
-
-  virtual void SetUp() OVERRIDE {
-    // TODO(danakj): The GPU Video Decoder needs real GL bindings.
-    // crbug.com/269087
-    UseRealGLBindings();
-
-    // These test should be using OSMesa on CrOS, which would make this
-    // unneeded.
-    // crbug.com/313128
-#if !defined(OS_CHROMEOS)
-    UseRealGLContexts();
-#endif
-
-    ExtensionApiTest::SetUp();
-  }
-
   void AddExtensionToCommandLineWhitelist() {
     CommandLine::ForCurrentProcess()->AppendSwitchASCII(
         switches::kWhitelistedExtensionID, kExtensionId);
   }
 };
 
+class TabCaptureApiPixelTest : public TabCaptureApiTest {
+ public:
+  virtual void SetUp() OVERRIDE {
+    UseRealGLContexts();
+    TabCaptureApiTest::SetUp();
+  }
+};
+
 }  // namespace
 
 IN_PROC_BROWSER_TEST_F(TabCaptureApiTest, ApiTests) {
 #if defined(OS_WIN) && defined(USE_ASH)
   // Disable this test in Metro+Ash for now (http://crbug.com/262796).
   if (CommandLine::ForCurrentProcess()->HasSwitch(switches::kAshBrowserTests))
     return;
 #endif
 
 #if defined(OS_WIN)
@@ skipping 19 matching lines @@
   ASSERT_TRUE(RunExtensionSubtest("tab_capture", "api_tests_audio.html"))
       << message_;
 }
 
 // http://crbug.com/177163
 #if !defined(NDEBUG)
 #define MAYBE_EndToEnd DISABLED_EndToEnd
 #else
 #define MAYBE_EndToEnd EndToEnd
 #endif
-IN_PROC_BROWSER_TEST_F(TabCaptureApiTest, MAYBE_EndToEnd) {
+IN_PROC_BROWSER_TEST_F(TabCaptureApiPixelTest, MAYBE_EndToEnd) {
 #if defined(OS_WIN)
   // TODO(justinlin): Disabled for WinXP due to timeout issues.
   if (base::win::GetVersion() < base::win::VERSION_VISTA) {
     return;
   }
 #endif
   // This test is too slow to succeed with OSMesa on the bots.
   if (UsingOSMesa())
     return;
 
@@ skipping 188 matching lines @@
 #if defined(OS_WIN) && !defined(NDEBUG)
 #define MAYBE_Constraints DISABLED_Constraints
 #else
 #define MAYBE_Constraints Constraints
 #endif
 IN_PROC_BROWSER_TEST_F(TabCaptureApiTest, MAYBE_Constraints) {
   AddExtensionToCommandLineWhitelist();
   ASSERT_TRUE(RunExtensionSubtest("tab_capture", "constraints.html"))
       << message_;
 }