Revert 250828 "Add a UMA stat to track if the Browser blacklist ..."

Speculative revert for failures here:

http://build.chromium.org/p/chromium.win/builders/Win7%20Sync%20x64/builds/11201

> Add a UMA stat to track if the Browser blacklist is Set on the Renderer
> 
> This shouldn't be happening, but we got some crash reports suggesting it
> does. Unable to repo locally so this stat will verify it does occur and
> then can be used to verify our fixes actually fix it.
> 
> BUG=329023
> 
> Review URL: https://codereview.chromium.org/140763008

TBR=csharp@chromium.org

Review URL: https://codereview.chromium.org/163633005

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@251095 0039d316-1c4b-4281-b951-d872f2087c98

5 files changed, 1 insertions, 21 deletions

diff --git a/chrome_elf/blacklist/blacklist.cc b/chrome_elf/blacklist/blacklist.cc
index 32d3cb2..ea140c4 100644
--- a/chrome_elf/blacklist/blacklist.cc
+++ b/chrome_elf/blacklist/blacklist.cc
@@ -60,10 +60,6 @@ enum WOW64Status {
   WOW64_UNKNOWN,
 };
 
-// Record if the blacklist was successfully initialized so processes can easily
-// determine if the blacklist is enabled for them.
-bool g_blacklist_initialized = false;
-
 WOW64Status GetWOW64StatusForCurrentProcess() {
   typedef BOOL (WINAPI* IsWow64ProcessFunc)(HANDLE, PBOOL);
   IsWow64ProcessFunc is_wow64_process = reinterpret_cast<IsWow64ProcessFunc>(
@@ -276,10 +272,6 @@ int BlacklistSize() {
   return size;
 }
 
-bool IsBlacklistInitialized() {
-  return g_blacklist_initialized;
-}
-
 bool AddDllToBlacklist(const wchar_t* dll_name) {
   int blacklist_size = BlacklistSize();
   // We need to leave one space at the end for the null pointer.
@@ -381,9 +373,6 @@ bool Initialize(bool force) {
   }
 #endif
 
-  // Record that we have initialized the blacklist.
-  g_blacklist_initialized = true;
-
   BYTE* thunk_storage = reinterpret_cast<BYTE*>(&g_thunk_storage);
 
   // Mark the thunk storage as readable and writeable, since we
diff --git a/chrome_elf/blacklist/blacklist.h b/chrome_elf/blacklist/blacklist.h
index 2e21f20..5237a5c 100644
--- a/chrome_elf/blacklist/blacklist.h
+++ b/chrome_elf/blacklist/blacklist.h
@@ -61,9 +61,6 @@ bool ResetBeacon();
 // Return the size of the current blacklist.
 int BlacklistSize();
 
-// Returns if true if the blacklist has been initialized.
-extern "C" bool IsBlacklistInitialized();
-
 // Adds the given dll name to the blacklist. Returns true if the dll name is in
 // the blacklist when this returns, false on error. Note that this will copy
 // |dll_name| and will leak it on exit if the string is not subsequently removed
diff --git a/chrome_elf/blacklist/test/blacklist_test.cc b/chrome_elf/blacklist/test/blacklist_test.cc
index 39db737..3a881ad 100644
--- a/chrome_elf/blacklist/test/blacklist_test.cc
+++ b/chrome_elf/blacklist/test/blacklist_test.cc
@@ -32,7 +32,6 @@ extern "C" {
 // functions on the test blacklist dll, not the ones linked into the test
 // executable itself.
 __declspec(dllimport) bool TestDll_AddDllToBlacklist(const wchar_t* dll_name);
-__declspec(dllimport) bool TestDLL_IsBlacklistInitialized();
 __declspec(dllimport) bool TestDll_RemoveDllFromBlacklist(
     const wchar_t* dll_name);
 }
@@ -121,9 +120,6 @@ TEST_F(BlacklistTest, LoadBlacklistedLibrary) {
   base::FilePath current_dir;
   ASSERT_TRUE(PathService::Get(base::DIR_EXE, &current_dir));
 
-  // Ensure that the blacklist is loaded.
-  ASSERT_TRUE(TestDLL_IsBlacklistInitialized());
-
   // Test that an un-blacklisted DLL can load correctly.
   base::ScopedNativeLibrary dll1(current_dir.Append(kTestDllName1));
   EXPECT_TRUE(dll1.is_valid());
diff --git a/chrome_elf/blacklist/test/blacklist_test_main_dll.def b/chrome_elf/blacklist/test/blacklist_test_main_dll.def
index 82e0f0e..63522a0 100644
--- a/chrome_elf/blacklist/test/blacklist_test_main_dll.def
+++ b/chrome_elf/blacklist/test/blacklist_test_main_dll.def
@@ -6,6 +6,5 @@ LIBRARY  "blacklist_test_main_dll.dll"
 
 EXPORTS
   TestDll_AddDllToBlacklist=AddDllToBlacklist
-  TestDLL_IsBlacklistInitialized=IsBlacklistInitialized
   TestDll_RemoveDllFromBlacklist=RemoveDllFromBlacklist
-  InitBlacklistTestDll
\ No newline at end of file
+  InitBlacklistTestDll
diff --git a/chrome_elf/chrome_elf.def b/chrome_elf/chrome_elf.def
index ee9808f..3e88cfa 100644
--- a/chrome_elf/chrome_elf.def
+++ b/chrome_elf/chrome_elf.def
@@ -6,5 +6,4 @@ LIBRARY  "chrome_elf.dll"
 
 EXPORTS
   CreateFileW=CreateFileWRedirect
-  IsBlacklistInitialized
   SignalChromeElf