Add a Mojo EDK for Chrome that uses one OS pipe per message pipe.

mojo/edk/system/core_test_base.h

Index: mojo/edk/system/core_test_base.h
diff --git a/third_party/mojo/src/mojo/edk/system/core_test_base.h b/mojo/edk/system/core_test_base.h
similarity index 65%
copy from third_party/mojo/src/mojo/edk/system/core_test_base.h
copy to mojo/edk/system/core_test_base.h
index e2375cde3d716471b6d53db7fcc2d484cc18538a..bbdaa5cf5bf83cca2fc2f72ec026c5323bea365b 100644
--- a/third_party/mojo/src/mojo/edk/system/core_test_base.h
+++ b/mojo/edk/system/core_test_base.h
@@ -5,14 +5,15 @@
 #ifndef MOJO_EDK_SYSTEM_CORE_TEST_BASE_H_
 #define MOJO_EDK_SYSTEM_CORE_TEST_BASE_H_
 
-#include "mojo/edk/embedder/simple_platform_support.h"
-#include "mojo/edk/system/mutex.h"
+#include "base/synchronization/lock.h"
+#include "mojo/edk/embedder/embedder_internal.h"
+#include "mojo/edk/system/test_utils.h"
 #include "mojo/public/c/system/types.h"
 #include "mojo/public/cpp/system/macros.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace mojo {
-namespace system {
+namespace edk {
 
 class Core;
 class Awakable;
@@ -21,26 +22,20 @@ namespace test {
 
 class CoreTestBase_MockHandleInfo;
 
-class CoreTestBase : public testing::Test {
+class CoreTestBase : public MojoSystemTest {
  public:
   using MockHandleInfo = CoreTestBase_MockHandleInfo;
 
   CoreTestBase();
   ~CoreTestBase() override;
 
-  void SetUp() override;
-  void TearDown() override;
-
  protected:
   // |info| must remain alive until the returned handle is closed.
   MojoHandle CreateMockHandle(MockHandleInfo* info);
 
-  Core* core() { return core_; }
+  Core* core() { return mojo::edk::internal::g_core; }
 
  private:
-  embedder::SimplePlatformSupport platform_support_;
-  Core* core_;
-
   MOJO_DISALLOW_COPY_AND_ASSIGN(CoreTestBase);
 };
 
@@ -88,30 +83,30 @@ class CoreTestBase_MockHandleInfo {
   void AwakableWasAdded(Awakable*);
 
  private:
-  mutable Mutex mutex_;
-  unsigned ctor_call_count_ MOJO_GUARDED_BY(mutex_);
-  unsigned dtor_call_count_ MOJO_GUARDED_BY(mutex_);
-  unsigned close_call_count_ MOJO_GUARDED_BY(mutex_);
-  unsigned write_message_call_count_ MOJO_GUARDED_BY(mutex_);
-  unsigned read_message_call_count_ MOJO_GUARDED_BY(mutex_);
-  unsigned write_data_call_count_ MOJO_GUARDED_BY(mutex_);
-  unsigned begin_write_data_call_count_ MOJO_GUARDED_BY(mutex_);
-  unsigned end_write_data_call_count_ MOJO_GUARDED_BY(mutex_);
-  unsigned read_data_call_count_ MOJO_GUARDED_BY(mutex_);
-  unsigned begin_read_data_call_count_ MOJO_GUARDED_BY(mutex_);
-  unsigned end_read_data_call_count_ MOJO_GUARDED_BY(mutex_);
-  unsigned add_awakable_call_count_ MOJO_GUARDED_BY(mutex_);
-  unsigned remove_awakable_call_count_ MOJO_GUARDED_BY(mutex_);
-  unsigned cancel_all_awakables_call_count_ MOJO_GUARDED_BY(mutex_);
-
-  bool add_awakable_allowed_ MOJO_GUARDED_BY(mutex_);
-  std::vector<Awakable*> added_awakables_ MOJO_GUARDED_BY(mutex_);
+  mutable base::Lock lock_;  // Protects the following members.
+  unsigned ctor_call_count_;
+  unsigned dtor_call_count_;
+  unsigned close_call_count_;
+  unsigned write_message_call_count_;
+  unsigned read_message_call_count_;
+  unsigned write_data_call_count_;
+  unsigned begin_write_data_call_count_;
+  unsigned end_write_data_call_count_;
+  unsigned read_data_call_count_;
+  unsigned begin_read_data_call_count_;
+  unsigned end_read_data_call_count_;
+  unsigned add_awakable_call_count_;
+  unsigned remove_awakable_call_count_;
+  unsigned cancel_all_awakables_call_count_;
+
+  bool add_awakable_allowed_;
+  std::vector<Awakable*> added_awakables_;
 
   MOJO_DISALLOW_COPY_AND_ASSIGN(CoreTestBase_MockHandleInfo);
 };
 
 }  // namespace test
-}  // namespace system
+}  // namespace edk
 }  // namespace mojo
 
 #endif  // MOJO_EDK_SYSTEM_CORE_TEST_BASE_H_