Omnibox: Combine Two Input Type Enums into One

components/metrics/proto/omnibox_event.proto

Index: components/metrics/proto/omnibox_event.proto
diff --git a/components/metrics/proto/omnibox_event.proto b/components/metrics/proto/omnibox_event.proto
index cb87c8a186355f99560645dc38cb4b4738bcc43c..80a35cd788a84e81034bbb0430dc0e02ebf77e4f 100644
--- a/components/metrics/proto/omnibox_event.proto
+++ b/components/metrics/proto/omnibox_event.proto
@@ -10,6 +10,8 @@ option optimize_for = LITE_RUNTIME;
 
 package metrics;
 
+import "omnibox_input_type.proto";
+
 // Next tag: 17
 message OmniboxEventProto {
   // The timestamp for the event, in seconds since the epoch.
@@ -128,18 +130,7 @@ message OmniboxEventProto {
   }
   optional PageClassification current_page_classification = 10;
 
-  // What kind of input the user provided.
-  enum InputType {
-    INVALID = 0;        // Empty input (should not reach here)
-    UNKNOWN = 1;        // Valid input whose type cannot be determined
-    REQUESTED_URL = 2;  // DEPRECATED. Input autodetected as UNKNOWN, which the
-                        // user wants to treat as an URL by specifying a
-                        // desired_tld
-    URL = 3;            // Input autodetected as a URL
-    QUERY = 4;          // Input autodetected as a query
-    FORCED_QUERY = 5;   // Input forced to be a query by an initial '?'
-  }
-  optional InputType input_type = 8;
+  optional OmniboxInputType.Type input_type = 8;
 
   // An enum used in multiple places below.
   enum ProviderType {