Break TYPE_PC into TYPE_WIN, TYPE_MAC, TYPE_LINUX.

This can give us flexibility down the line with ui changes. No clients use the protocol yet so it's safe to move CrOs from 2 to 4.

BUG=94693
TEST=


Review URL: http://codereview.chromium.org/7811001

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@98984 0039d316-1c4b-4281-b951-d872f2087c98

chrome/browser/sync/protocol/proto_enum_conversions.cc

@@ -91,10 +91,13 @@ const char* GetUpdatesSourceString(
 
 const char* GetDeviceTypeString(
     sync_pb::SessionHeader::DeviceType device_type) {
-  ASSERT_ENUM_BOUNDS(sync_pb::SessionHeader, DeviceType, TYPE_PC, TYPE_CROS);
+  ASSERT_ENUM_BOUNDS(sync_pb::SessionHeader, DeviceType, TYPE_WIN, TYPE_OTHER);
   switch (device_type) {
-    ENUM_CASE(sync_pb::SessionHeader, TYPE_PC);
+    ENUM_CASE(sync_pb::SessionHeader, TYPE_WIN);
+    ENUM_CASE(sync_pb::SessionHeader, TYPE_MAC);
+    ENUM_CASE(sync_pb::SessionHeader, TYPE_LINUX);
     ENUM_CASE(sync_pb::SessionHeader, TYPE_CROS);
+    ENUM_CASE(sync_pb::SessionHeader, TYPE_OTHER);
   }
   NOTREACHED();
   return "";

chrome/browser/sync/protocol/session_specifics.proto

@@ -30,8 +30,11 @@ message SessionHeader {
   optional string client_name = 3;
   // The type of device.
   enum DeviceType {
-    TYPE_PC = 1;
-    TYPE_CROS = 2;
+    TYPE_WIN = 1;
+    TYPE_MAC = 2;
+    TYPE_LINUX = 3;
+    TYPE_CROS = 4;
+    TYPE_OTHER = 5;
   }
   optional DeviceType device_type = 4;
 }