Include CPU information in UMA system profile.

chrome/common/metrics/proto/system_profile.proto

Index: chrome/common/metrics/proto/system_profile.proto
diff --git a/chrome/common/metrics/proto/system_profile.proto b/chrome/common/metrics/proto/system_profile.proto
index d46e58ebe24966da44f3a0d393acb491ab250c93..781e11e66758be0c59fcb04daa23f6f9917ba63e 100644
--- a/chrome/common/metrics/proto/system_profile.proto
+++ b/chrome/common/metrics/proto/system_profile.proto
@@ -78,7 +78,7 @@ message SystemProfileProto {
   }
   optional OS os = 5;
 
-  // Next tag for Hardware: 13
+  // Next tag for Hardware: 14
   // Information on the user's hardware.
   message Hardware {
     // The CPU architecture (x86, PowerPC, x86_64, ...)
@@ -116,6 +116,33 @@ message SystemProfileProto {
     optional float max_dpi_x = 9;
     optional float max_dpi_y = 10;
 
+    // Information on the CPU obtained by CPUID.
+    message CPU {
+      // A 12 character string naming the vendor, e.g. "GeniuneIntel".

[jar (doing other things), 2013/06/26 19:29:34]

Have you gotten this approved for upload in UMA?  We usually shy away from
uploading strings... although there are cases where we do so.

[James Simonsen, 2013/07/09 23:53:26]

Yes, it's been approved by the privacy team. It's effectively the same as the
GPU info, which also uploads vendor strings.

[jar (doing other things), 2013/07/17 00:43:50]

OK... if you've gotten approval, SGTM ;-).

+      optional string vendor_name = 1;
+
+      // Identifies the version within the model.
+      optional uint32 stepping = 2;
+
+      // Identifies the model within the family.
+      optional uint32 model = 3;
+
+      // Identifies processors with similar characteristics.
+      optional uint32 family = 4;
+
+      // Identifies the processor type.
+      optional uint32 type = 5;
+
+      // Additional model bits beyond the basic model. They've overflowed the
+      // original field.
+      optional uint32 extended_model = 6;
+
+      // Additional family bits beyond the basic family. They've overflowed the
+      // original field.
+      optional uint32 extended_family = 7;
+    }
+    optional CPU cpu = 13;
+
     // Information on the GPU
     message Graphics {
       // The GPU manufacturer's vendor id.