[clangd] Try to fix buildbot failure after r349496

Increase timeout from 10ms to 100ms.
See http://lab.llvm.org:8011/builders/clang-ppc64be-linux/builds/27959

git-svn-id: https://llvm.org/svn/llvm-project/clang-tools-extra/trunk@349502 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/unittests/clangd/BackgroundIndexTests.cpp b/unittests/clangd/BackgroundIndexTests.cpp
index c7466a3..377e501 100644
--- a/unittests/clangd/BackgroundIndexTests.cpp
+++ b/unittests/clangd/BackgroundIndexTests.cpp
@@ -251,7 +251,7 @@
   OverlayCDB CDB(/*Base=*/nullptr);
   BackgroundIndex Idx(
       Context::empty(), "", FS, CDB, [&](llvm::StringRef) { return &MSS; },
-      /*BuildIndexPeriodMs=*/10);
+      /*BuildIndexPeriodMs=*/100);
 
   FS.Files[testPath("root/A.cc")] = "#include \"A.h\"";
 
@@ -263,7 +263,7 @@
 
   ASSERT_TRUE(Idx.blockUntilIdleForTest());
   EXPECT_THAT(runFuzzyFind(Idx, ""), ElementsAre());
-  std::this_thread::sleep_for(std::chrono::milliseconds(15));
+  std::this_thread::sleep_for(std::chrono::milliseconds(150));
   EXPECT_THAT(runFuzzyFind(Idx, ""), ElementsAre(Named("X")));
 
   FS.Files[testPath("root/A.h")] = "class Y {};";
@@ -273,7 +273,7 @@
 
   ASSERT_TRUE(Idx.blockUntilIdleForTest());
   EXPECT_THAT(runFuzzyFind(Idx, ""), ElementsAre(Named("X")));
-  std::this_thread::sleep_for(std::chrono::milliseconds(15));
+  std::this_thread::sleep_for(std::chrono::milliseconds(150));
   EXPECT_THAT(runFuzzyFind(Idx, ""), ElementsAre(Named("Y")));
 }