Removing useless Win7 checks + standardize its use

content/ppapi_plugin/ppapi_thread.cc

Index: content/ppapi_plugin/ppapi_thread.cc
diff --git a/content/ppapi_plugin/ppapi_thread.cc b/content/ppapi_plugin/ppapi_thread.cc
index ebd62ac5fcffc2316c9b62a79da6fa18e8ffc4b5..39c079dc7782312a28f6d9cca74665b08805f644 100644
--- a/content/ppapi_plugin/ppapi_thread.cc
+++ b/content/ppapi_plugin/ppapi_thread.cc
@@ -58,7 +58,6 @@
 
 #if defined(OS_WIN)
 #include "base/win/win_util.h"
-#include "base/win/windows_version.h"
 #include "content/child/font_warmup_win.h"
 #include "sandbox/win/src/sandbox.h"
 #elif defined(OS_MACOSX)
@@ -75,10 +74,6 @@ const char kWidevineCdmAdapterFileName[] = "widevinecdmadapter.dll";
 extern sandbox::TargetServices* g_target_services;
 
 // Used by EnumSystemLocales for warming up.
-static BOOL CALLBACK EnumLocalesProc(LPTSTR lpLocaleString) {
-  return TRUE;
-}
-
 static BOOL CALLBACK EnumLocalesProcEx(
     LPWSTR lpLocaleString,
     DWORD dwFlags,
@@ -91,21 +86,8 @@ static void WarmupWindowsLocales(const ppapi::PpapiPermissions& permissions) {
   ::GetUserDefaultLangID();
   ::GetUserDefaultLCID();
 
-  if (permissions.HasPermission(ppapi::PERMISSION_FLASH)) {
-    if (base::win::GetVersion() >= base::win::VERSION_VISTA) {
-      typedef BOOL (WINAPI *PfnEnumSystemLocalesEx)
-          (LOCALE_ENUMPROCEX, DWORD, LPARAM, LPVOID);
-
-      HMODULE handle_kern32 = GetModuleHandleW(L"Kernel32.dll");
-      PfnEnumSystemLocalesEx enum_sys_locales_ex =
-          reinterpret_cast<PfnEnumSystemLocalesEx>
-              (GetProcAddress(handle_kern32, "EnumSystemLocalesEx"));
-
-      enum_sys_locales_ex(EnumLocalesProcEx, LOCALE_WINDOWS, 0, 0);
-    } else {
-      EnumSystemLocalesW(EnumLocalesProc, LCID_INSTALLED);
-    }
-  }
+  if (permissions.HasPermission(ppapi::PERMISSION_FLASH))
+    ::EnumSystemLocalesEx(EnumLocalesProcEx, LOCALE_WINDOWS, 0, 0);
 }
 
 #endif
@@ -415,28 +397,22 @@ void PpapiThread::OnLoadPlugin(const base::FilePath& path,
   // can be loaded. TODO(cpu): consider changing to the loading style of
   // regular plugins.
   if (g_target_services) {
-    // Let Flash and Widevine CDM adapter load DXVA before lockdown on Vista+.
+    // Let Flash and Widevine CDM adapter load DXVA before lockdown.
     if (permissions.HasPermission(ppapi::PERMISSION_FLASH) ||
         path.BaseName().MaybeAsASCII() == kWidevineCdmAdapterFileName) {
-      if (base::win::OSInfo::GetInstance()->version() >=
-          base::win::VERSION_VISTA) {
-        LoadLibraryA("dxva2.dll");
-      }
+      LoadLibraryA("dxva2.dll");
     }
 
     if (permissions.HasPermission(ppapi::PERMISSION_FLASH)) {
-      if (base::win::OSInfo::GetInstance()->version() >=
-          base::win::VERSION_WIN7) {
-        base::CPU cpu;
-        if (cpu.vendor_name() == "AuthenticAMD") {
-          // The AMD crypto acceleration is only AMD Bulldozer and above.
+      base::CPU cpu;
+      if (cpu.vendor_name() == "AuthenticAMD") {
+        // The AMD crypto acceleration is only AMD Bulldozer and above.
 #if defined(_WIN64)
-          LoadLibraryA("amdhcp64.dll");
+        LoadLibraryA("amdhcp64.dll");
 #else
-          LoadLibraryA("amdhcp32.dll");
+        LoadLibraryA("amdhcp32.dll");
 #endif
         }
-      }
     }
 
     // Cause advapi32 to load before the sandbox is turned on.