Remove all blimp engine code

chrome/app/chrome_crash_reporter_client_win.cc

 // Copyright 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.
 
 // TODO(ananta/scottmg)
 // Add test coverage for Crashpad.
 #include "chrome/app/chrome_crash_reporter_client_win.h"
 
 #include <assert.h>
 #include <windows.h>
@@ skipping 70 matching lines @@
   int result = vsnprintf(buffer, size, format, arguments);
   va_end(arguments);
   return result;
 }
 
 size_t RegisterCrashKeysHelper() {
   // The following keys may be chunked by the underlying crash logging system,
   // but ultimately constitute a single key-value pair.
   //
   // For now these need to be kept relatively up to date with those in
-  // //chrome/common/crash_keys.cc::RegisterChromeCrashKeys() and
-  // //blimp/engine/app/blimp_engine_crash_keys.cc
+  // chrome/common/crash_keys.cc::RegisterChromeCrashKeys().
   constexpr base::debug::CrashKey fixed_keys[] = {
       {kMetricsClientId, kSmallSize},
       {kChannel, kSmallSize},
       {kActiveURL, kLargeSize},
       {kNumVariations, kSmallSize},
       {kVariations, kLargeSize},
       {kNumExtensionsCount, kSmallSize},
       {kShutdownType, kSmallSize},
       {kBrowserUnpinTrace, kMediumSize},
       {kGPUVendorID, kSmallSize},
@@ skipping 294 matching lines @@
 bool ChromeCrashReporterClient::GetCollectStatsInSample() {
   return install_static::GetCollectStatsInSample();
 }
 
 bool ChromeCrashReporterClient::EnableBreakpadForProcess(
     const std::string& process_type) {
   // This is not used by Crashpad (at least on Windows).
   NOTREACHED();
   return true;
 }