Be explicit about namespace testing to not mix it with blink::testing

third_party/WebKit/Source/platform/blob/BlobBytesProviderTest.cpp

Index: third_party/WebKit/Source/platform/blob/BlobBytesProviderTest.cpp
diff --git a/third_party/WebKit/Source/platform/blob/BlobBytesProviderTest.cpp b/third_party/WebKit/Source/platform/blob/BlobBytesProviderTest.cpp
index 1a5a7b06147fe80f7c5ffface9fd99a5a0a7cfd3..75d53a775c7f035ed2f686688beb7a804d0fc554 100644
--- a/third_party/WebKit/Source/platform/blob/BlobBytesProviderTest.cpp
+++ b/third_party/WebKit/Source/platform/blob/BlobBytesProviderTest.cpp
@@ -12,7 +12,7 @@
 namespace blink {
 namespace {
 
-class BlobBytesProviderTest : public testing::Test {
+class BlobBytesProviderTest : public ::testing::Test {
  public:
   void SetUp() override {
     test_bytes1_.resize(128);
@@ -78,7 +78,7 @@ void PrintTo(const FileTestData& test, std::ostream* os) {
 }
 
 class RequestAsFile : public BlobBytesProviderTest,
-                      public testing::WithParamInterface<FileTestData> {
+                      public ::testing::WithParamInterface<FileTestData> {
  public:
   void SetUp() override {
     BlobBytesProviderTest::SetUp();
@@ -209,7 +209,7 @@ const FileTestData file_tests[] = {
 
 INSTANTIATE_TEST_CASE_P(BlobBytesProviderTest,
                         RequestAsFile,
-                        testing::ValuesIn(file_tests));
+                        ::testing::ValuesIn(file_tests));
 
 TEST_F(BlobBytesProviderTest, RequestAsFile_MultipleChunks) {
   auto provider = WTF::MakeUnique<BlobBytesProvider>(test_data1_);