Replace HistoryQuickProvider protobuf-based caching with an SQLite-based database.

chrome/browser/diagnostics/diagnostics_model_unittest.cc

Index: chrome/browser/diagnostics/diagnostics_model_unittest.cc
===================================================================
--- chrome/browser/diagnostics/diagnostics_model_unittest.cc	(revision 151481)
+++ chrome/browser/diagnostics/diagnostics_model_unittest.cc	(working copy)
@@ -78,11 +78,11 @@
 
 // We currently have more tests operational on windows.
 #if defined(OS_WIN)
-const int kDiagnosticsTestCount = 19;
+const int kDiagnosticsTestCount = 20;
 #elif defined(OS_MACOSX)
-const int kDiagnosticsTestCount = 16;
+const int kDiagnosticsTestCount = 17;
 #elif defined(OS_POSIX)
-const int kDiagnosticsTestCount = 17;
+const int kDiagnosticsTestCount = 18;
 #endif
 
 // Test that the initial state is correct.