Ensure GL initialization only happens once, and provide common init path

gpu/command_buffer/common/unittest_main.cc

Index: gpu/command_buffer/common/unittest_main.cc
diff --git a/gpu/command_buffer/common/unittest_main.cc b/gpu/command_buffer/common/unittest_main.cc
index c48b77dec6dd930eda9acb817a4dcc48f76ae467..358805a310c33479a795b07c9b685d9870e515c6 100644
--- a/gpu/command_buffer/common/unittest_main.cc
+++ b/gpu/command_buffer/common/unittest_main.cc
@@ -11,6 +11,7 @@
 #include "testing/gtest/include/gtest/gtest.h"
 #include "ui/gl/gl_implementation.h"
 #include "ui/gl/gl_mock.h"
+#include "ui/gl/gl_surface.h"
 
 namespace {
 
@@ -19,6 +20,13 @@ class NoAtExitBaseTestSuite : public base::TestSuite {
   NoAtExitBaseTestSuite(int argc, char** argv)
       : base::TestSuite(argc, argv, false) {
   }
+
+  virtual void Initialize() OVERRIDE {
+    base::TestSuite::Initialize();
+    gfx::SetGLGetProcAddressProc(gfx::MockGLInterface::GetGLProcAddress);
+    gfx::GLSurface::InitializeOneOffWithMockBindingsForTests();
+    gfx::GLSurface::InitializeDynamicMockBindingsForTests(NULL);
+  }
 };
 
 int RunTestSuite(int argc, char** argv) {
@@ -35,9 +43,6 @@ int main(int argc, char** argv) {
   base::AtExitManager exit_manager;
 #endif
   CommandLine::Init(argc, argv);
-  gfx::SetGLGetProcAddressProc(gfx::MockGLInterface::GetGLProcAddress);
-  gfx::InitializeStaticGLBindings(gfx::kGLImplementationMockGL);
-  gfx::InitializeDynamicGLBindings(gfx::kGLImplementationMockGL, NULL);
   testing::InitGoogleMock(&argc, argv);
   return base::LaunchUnitTests(argc,
                                argv,