Revert of Crashpad Windows: Use the Crashpad client instead of Breakpad on Windows

chrome/app/chrome_crash_reporter_client.cc

Index: chrome/app/chrome_crash_reporter_client.cc
diff --git a/chrome/app/chrome_crash_reporter_client.cc b/chrome/app/chrome_crash_reporter_client.cc
index 2663a08017ad0aef4a048deeffd8eb441465f9f1..49c8c492624336f81b0f31bbe773d7108e676e0b 100644
--- a/chrome/app/chrome_crash_reporter_client.cc
+++ b/chrome/app/chrome_crash_reporter_client.cc
@@ -292,7 +292,17 @@
 }
 
 size_t ChromeCrashReporterClient::RegisterCrashKeys() {
+  // Note: On Windows this only affects the EXE. A separate invocation from
+  // child_process_logging_win.cc registers crash keys for Chrome.dll.
+#if defined(OS_WIN) && defined(COMPONENT_BUILD)
+  // On Windows, this is not called in a component build, as in that case a
+  // single copy of 'base' is shared by the EXE and the various DLLs, and that
+  // copy is configured by child_process_logging_win.cc.
+  NOTREACHED();
+  return 0;
+#else
   return crash_keys::RegisterChromeCrashKeys();
+#endif
 }
 
 bool ChromeCrashReporterClient::IsRunningUnattended() {