Move DumpProcessWithoutCrash to base, so we can use it from net and content

components/breakpad/app/breakpad_client.cc

Index: components/breakpad/app/breakpad_client.cc
diff --git a/components/breakpad/app/breakpad_client.cc b/components/breakpad/app/breakpad_client.cc
index e9bbe87c173f5151cdd5ad25064c3b96be592314..84931eacdf0321bfe0b7bcf1fb89dc47cf5645f9 100644
--- a/components/breakpad/app/breakpad_client.cc
+++ b/components/breakpad/app/breakpad_client.cc
@@ -90,11 +90,6 @@ bool BreakpadClient::GetCrashDumpLocation(base::FilePath* crash_dir) {
   return false;
 }
 
-#if defined(OS_POSIX)
-void BreakpadClient::SetDumpWithoutCrashingFunction(void (*function)()) {
-}
-#endif
-
 size_t BreakpadClient::RegisterCrashKeys() {
   return 0;
 }