Add WebView-specific whitelist for crash keys.

components/crash/content/app/breakpad_linux.cc

Index: components/crash/content/app/breakpad_linux.cc
diff --git a/components/crash/content/app/breakpad_linux.cc b/components/crash/content/app/breakpad_linux.cc
index 3c31d7619e49bf56210ff310e3a73905c58a43ec..2bf06867b0f28b91d01ae4cf33ddd18b42032344 100644
--- a/components/crash/content/app/breakpad_linux.cc
+++ b/components/crash/content/app/breakpad_linux.cc
@@ -30,6 +30,7 @@
 #include "base/debug/crash_logging.h"
 #include "base/debug/dump_without_crashing.h"
 #include "base/files/file_path.h"
+#include "base/format_macros.h"
 #include "base/lazy_instance.h"
 #include "base/linux_util.h"
 #include "base/macros.h"
@@ -39,6 +40,7 @@
 #include "base/process/memory.h"
 #include "base/strings/string_split.h"
 #include "base/strings/string_util.h"
+#include "base/strings/stringprintf.h"
 #include "base/threading/thread_checker.h"
 #include "breakpad/src/client/linux/crash_generation/crash_generation_client.h"
 #include "breakpad/src/client/linux/handler/exception_handler.h"
@@ -1098,9 +1100,42 @@ void EnableNonBrowserCrashDumping() {
 }
 #endif  // defined(OS_ANDROID)
 
+bool g_use_crash_keys_whitelist;
+std::vector<const char*> g_crash_keys_whitelist;
+
+void SetupCrashKeysWhiteList(bool use_white_list,
+                             const std::vector<const char*>& keys) {
+  g_use_crash_keys_whitelist = use_white_list;
+  g_crash_keys_whitelist = keys;
+  LOG(ERROR) << "in SetupCrashKeysWhiteList, whitelist length: " << keys.size();
+  for (size_t i = 0; i < keys.size(); ++i) {
+    LOG(ERROR) << "in SetupCrashKeysWhiteList, entry: "
+               << g_crash_keys_whitelist.data()[i];
+  }
+}
+
+bool IsInWhiteList(const base::StringPiece& key) {
+  for (size_t i = 0; i < g_crash_keys_whitelist.size(); ++i) {
+    LOG(ERROR) << "in SetupCrashKeysWhiteList, entry: "
+               << g_crash_keys_whitelist.data()[i];
+    if (0 == my_strcmp(g_crash_keys_whitelist.data()[i], key.data())) {
+      return true;
+    }
+  }
+  return false;
+}
+
 void SetCrashKeyValue(const base::StringPiece& key,
                       const base::StringPiece& value) {
-  g_crash_keys->SetKeyValue(key.data(), value.data());
+  LOG(ERROR) << "in SetCrashKeyValue for key " << key.data();
+  if (!g_use_crash_keys_whitelist || IsInWhiteList(key)) {
+    LOG(ERROR) << "in SetCrashKeyValue for key " << key.data()
+               << " it is in the whitelist :D";
+    g_crash_keys->SetKeyValue(key.data(), value.data());
+  } else {
+    LOG(ERROR) << "in SetCrashKeyValue for key " << key.data()
+               << ", not in the whitelist";
+  }
 }
 
 void ClearCrashKey(const base::StringPiece& key) {
@@ -1112,6 +1147,8 @@ void ClearCrashKey(const base::StringPiece& key) {
 void InitCrashKeys() {
   g_crash_keys = new CrashKeyStorage;
   GetCrashReporterClient()->RegisterCrashKeys();
+  SetupCrashKeysWhiteList(GetCrashReporterClient()->UseCrashKeysWhiteList(),
+                          GetCrashReporterClient()->GetWhiteListedCrashKeys());
   base::debug::SetCrashKeyReportingFunctions(&SetCrashKeyValue, &ClearCrashKey);
 }
 
@@ -1905,6 +1942,10 @@ void InitCrashReporter(const std::string& process_type) {
   InitCrashReporter(process_type, sanitization_info);
 }
 
+void InitCrashKeysForTesting() {
+  InitCrashKeys();
+}
+
 void InitCrashReporter(const std::string& process_type,
                        const SanitizationInfo& sanitization_info) {
 #else