Replace enable-compositing-for-fixed-position with prefer-compositing-to-lcd-text.

chrome/common/crash_keys.cc

 // Copyright (c) 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/common/crash_keys.h"
 
 #include "base/command_line.h"
 #include "base/format_macros.h"
 #include "base/logging.h"
 #include "base/strings/string_split.h"
@@ skipping 245 matching lines @@
 
          // These surround the flags that were added by about:flags, it lets
          // you distinguish which flags were added manually via the command
          // line versus those added through about:flags. For the most part
          // we don't care how an option was enabled, so we strip these.
          // (If you need to know can always look at the PEB).
          flag == "--flag-switches-begin" ||
          flag == "--flag-switches-end";
 #elif defined(OS_CHROMEOS)
   static const char* kIgnoreSwitches[] = {
-    ::switches::kEnableCompositingForFixedPosition,
     ::switches::kEnableImplSidePainting,
     ::switches::kEnableLogging,
     ::switches::kFlagSwitchesBegin,
     ::switches::kFlagSwitchesEnd,
     ::switches::kLoggingLevel,
     ::switches::kPpapiFlashArgs,
     ::switches::kPpapiFlashPath,
     ::switches::kRegisterPepperPlugins,
     ::switches::kUIPrioritizeInGpuProcess,
     ::switches::kUseGL,
@@ skipping 116 matching lines @@
 }
 
 ScopedPrinterInfo::~ScopedPrinterInfo() {
   for (size_t i = 0; i < kPrinterInfoCount; ++i) {
     std::string key = base::StringPrintf(kPrinterInfo, i + 1);
     base::debug::ClearCrashKey(key);
   }
 }
 
 }  // namespace crash_keys