Rename all googletest CMake targets

CMake targets are visible globally but gtest_main has boringssl-specific
behavior that isn't appropriate for general use.

This change makes it possible to use boringssl and abseil-cpp in the
same project (since abseil-cpp expects gtest_main to exist and be useful
for its own tests).

Change-Id: Icc81c11b8bb4b1e21cea7c9fa725b6c082bd5369
Reviewed-by: Adam Langley <>
Commit-Queue: Adam Langley <>
CQ-Verified: CQ bot account: <>
diff --git a/crypto/test/CMakeLists.txt b/crypto/test/CMakeLists.txt
index 8857913..46a40f8 100644
--- a/crypto/test/CMakeLists.txt
+++ b/crypto/test/CMakeLists.txt
@@ -9,7 +9,7 @@
-  gtest_main
+  boringssl_gtest_main