Completed the code path from AndroidProviderService to HistoryBackend.

chrome/test/base/testing_profile.cc

Index: chrome/test/base/testing_profile.cc
diff --git a/chrome/test/base/testing_profile.cc b/chrome/test/base/testing_profile.cc
index 7d26924df929de1a9102248ef2297d5aa1eaa7cb..222cda51c4dc3671c40ea4463878ee1d4b3d7d49 100644
--- a/chrome/test/base/testing_profile.cc
+++ b/chrome/test/base/testing_profile.cc
@@ -195,6 +195,9 @@ TestingProfile::TestingProfile(const FilePath& path,
 }
 
 void TestingProfile::Init() {
+  if (!file_util::PathExists(profile_path_))

[sky, 2012/04/25 15:57:25]

Why is this needed?

[michaelbai, 2012/04/26 05:32:48]

For the profile created by TestingProfileManager::CreateTestingProfile(const
std::string& name), the directory is not created, and
TestingProfile::CreateHistoryService() will fail

On 2012/04/25 15:57:25, sky wrote:

+    file_util::CreateDirectory(profile_path_);
+
   ExtensionSystemFactory::GetInstance()->SetTestingFactory(
       this, TestExtensionSystem::Build);