Add ANGLE perf tests targets.

gpu/angle_perftests_main.cc

Index: gpu/angle_perftests_main.cc
diff --git a/gpu/angle_unittest_main.cc b/gpu/angle_perftests_main.cc
similarity index 77%
copy from gpu/angle_unittest_main.cc
copy to gpu/angle_perftests_main.cc
index 7187829a233108e1ec3c3cd1e5da785f22e3bfe4..c608a3ed4c55950b7c92bb40b319a91b0278b5eb 100644
--- a/gpu/angle_unittest_main.cc
+++ b/gpu/angle_perftests_main.cc
@@ -8,9 +8,6 @@
 #include "base/message_loop/message_loop.h"
 #include "base/test/launcher/unit_test_launcher.h"
 #include "base/test/test_suite.h"
-#include "testing/gmock/include/gmock/gmock.h"
-#include "testing/gtest/include/gtest/gtest.h"
-#include "third_party/angle/include/GLSLANG/ShaderLang.h"
 
 namespace {
 
@@ -23,13 +20,10 @@ int RunHelper(base::TestSuite* test_suite) {
 
 int main(int argc, char** argv) {
   base::CommandLine::Init(argc, argv);
-  testing::InitGoogleMock(&argc, argv);
-  ShInitialize();
   base::TestSuite test_suite(argc, argv);
   int rt = base::LaunchUnitTestsSerially(
       argc,
       argv,
       base::Bind(&RunHelper, base::Unretained(&test_suite)));
-  ShFinalize();
   return rt;
 }