Speed up angle_end2end_tests by running tests in larger batches.

gpu/angle_test_batcher.h

Index: gpu/angle_test_batcher.h
diff --git a/gpu/command_buffer/service/gl_context_mock.cc b/gpu/angle_test_batcher.h
similarity index 56%
copy from gpu/command_buffer/service/gl_context_mock.cc
copy to gpu/angle_test_batcher.h
index ce5d10f2770c95c59d0ad70129594dc474359256..816ccb0acb69c2903ba5a842bc25d0b5b2be457a 100644
--- a/gpu/command_buffer/service/gl_context_mock.cc
+++ b/gpu/angle_test_batcher.h
@@ -2,13 +2,13 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#include "gpu/command_buffer/service/gl_context_mock.h"
+#ifndef GPU_ANGLE_TEST_BATCHER_H_
+#define GPU_ANGLE_TEST_BATCHER_H_
 
 namespace gpu {
 
-GLContextMock::GLContextMock() {
-}
-GLContextMock::~GLContextMock() {
+void BatchANGLETests();
+
 }
 
-}  // namespace gpu
+#endif  // GPU_ANGLE_TEST_BATCHER_H_