Create the crash key registration system and register some Mac-specific keys.

chrome/common/crash_keys.cc

Index: chrome/common/crash_keys.cc
diff --git a/chrome/common/crash_keys.cc b/chrome/common/crash_keys.cc
index 55b0864c40e0fab3b81d8c0a2b9e7f35d07cd458..1791ef82389c0fd82b7ef4719a82b2df8a0658d4 100644
--- a/chrome/common/crash_keys.cc
+++ b/chrome/common/crash_keys.cc
@@ -6,6 +6,35 @@
 
 namespace crash_keys {
 
+// TODO(rsesek): This is true on Mac and Linux but not Windows.
+static const size_t kSingleChunkLength = 255;
+
+void RegisterChromeCrashKeys(
+    base::debug::InitCrashKeysCallbackFuncT init_func) {
+  base::debug::CrashKey keys[] = {
+#if defined(OS_MACOSX)
+    { mac::kFirstNSException, 1, kSingleChunkLength },
+    { mac::kFirstNSExceptionTrace, 1, kSingleChunkLength },
+    { mac::kLastNSException, 1, kSingleChunkLength },
+    { mac::kLastNSExceptionTrace, 1, kSingleChunkLength },
+    { mac::kNSException, 1, kSingleChunkLength },
+    { mac::kSendAction, 1, kSingleChunkLength },
+    { mac::kZombie, 1, kSingleChunkLength },
+    { mac::kZombieTrace, 1, kSingleChunkLength },
+    // content/:
+    { "channel_error_bt", 1, kSingleChunkLength },
+    { "remove_route_bt", 1, kSingleChunkLength },
+    { "rwhvm_window", 1, kSingleChunkLength },
+    // media/:
+    { "VideoCaptureDeviceQTKit", 1, kSingleChunkLength },
+#endif
+  };
+
+  base::debug::InitCrashKeys(keys, arraysize(keys), init_func);
+}
+
+// Crash Key Name Constants ////////////////////////////////////////////////////
+
 namespace mac {
 
 const char kFirstNSException[] = "firstexception";