Revert "[Autofill] Move legacy server request/response protos to be test only"

This reverts commit 239e4113.

Reason for revert:

Findit (https://goo.gl/kROfz5) identified CL at revision 813342 as the
culprit for failures in the build cycles as shown on:
https://analysis.chromium.org/waterfall/culprit?key=ag9zfmZpbmRpdC1mb3ItbWVyRAsSDVdmU3VzcGVjdGVkQ0wiMWNocm9taXVtLzIzOWU0MTEzYTBmYWVkYzdhMjY2NzcwYmQxNjQ1ZTQ3OGY0ZmU5ZTQM

Sample Failed Build: https://ci.chromium.org/b/8867519387170143872

Sample Failed Step: compile

Original change's description:
> [Autofill] Move legacy server request/response protos to be test only
> 
> 
> Bug: 1114655
> Change-Id: If1f6a68aa8f42b4e5df16b862022f5547ac08b1e
> Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2442733
> Commit-Queue: Mohamed Amir Yosef <mamir@chromium.org>
> Reviewed-by: Dominic Battré <battre@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#813342}


Change-Id: Ic183da760ca10d8d03f03ebf5c43fade7ff6b4f6
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: 1114655
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2446557
Cr-Commit-Position: refs/heads/master@{#813376}

chrome/browser/autofill/automated_tests/cache_replayer.h

@@ -11,7 +11,6 @@
 
 #include "base/files/file_path.h"
 #include "components/autofill/core/browser/proto/api_v1.pb.h"
-#include "components/autofill/core/browser/proto/legacy_server_request_response.pb.h"
 #include "components/autofill/core/browser/proto/server.pb.h"
 #include "content/public/test/url_loader_interceptor.h"
 #include "third_party/protobuf/src/google/protobuf/stubs/statusor.h"

components/autofill/core/browser/BUILD.gn

@@ -502,10 +502,7 @@ static_library("test_support") {
     "webdata/mock_autofill_webdata_service.h",
   ]
 
-  public_deps = [
-    ":browser",
-    "//components/autofill/core/browser/proto:test_support",
-  ]
+  public_deps = [ ":browser" ]
 
   deps = [
     ":autofill_address_rewriter_resources",

components/autofill/core/browser/autofill_test_utils.h

@@ -17,7 +17,6 @@
 #include "components/autofill/core/browser/field_types.h"
 #include "components/autofill/core/browser/form_structure.h"
 #include "components/autofill/core/browser/proto/api_v1.pb.h"
-#include "components/autofill/core/browser/proto/legacy_server_request_response.pb.h"
 #include "components/autofill/core/browser/proto/server.pb.h"
 
 class PrefService;

components/autofill/core/browser/proto/BUILD.gn

@@ -14,8 +14,3 @@ fuzzable_proto_library("proto") {
     "strike_data.proto",
   ]
 }
-
-fuzzable_proto_library("test_support") {
-  testonly = true
-  sources = [ "legacy_server_request_response.proto" ]
-}

components/autofill/core/browser/proto/legacy_server_request_response.proto

-// Copyright 2020 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-// Data models of request and response to interface with legacy Autofill API.
-// Should be used only in tests.
-
-syntax = "proto2";
-
-option optimize_for = LITE_RUNTIME;
-
-package autofill;
-
-import "password_requirements.proto";
-import "server.proto";
-
-// Request to query field suggestions for forms in a page from legacy Autofill
-// API.
-// Next available id: 15
-message AutofillQueryContents {
-  reserved 11;  // Reserved for server use.
-  required string client_version = 1;
-  repeated group Form = 2 {
-    required fixed64 signature = 3;
-    optional AutofillRandomizedFormMetadata form_metadata = 12;
-    repeated group Field = 4 {
-      required fixed32 signature = 5;
-      optional string name = 8;
-      optional string type = 9;  // Control type.
-      optional AutofillRandomizedFieldMetadata field_metadata = 13;
-    }
-  }
-  repeated int64 experiments = 14;
-}
-
-// Response from Autofill query on the legacy API that gives field suggestions
-// for forms of a page in a flattened representation. The fields are returned in
-// the exact same order as filled in the request.
-// Next available id: 10
-message AutofillQueryResponseContents {
-  optional bool upload_required = 1 [deprecated = true];
-  repeated group Field = 2 {
-    required fixed32 overall_type_prediction = 3;
-    // Detailed list of all possible predictions (including
-    // |overall_type_prediction| as the first item).
-    message FieldPrediction {
-      // The predicted field type.
-      optional fixed32 type = 1;
-
-      // True if the serverside classification believes that the field
-      // may be pre-filled with a placeholder in the value attribute.
-      optional bool may_use_prefilled_placeholder = 2;
-    }
-    repeated FieldPrediction predictions = 7;
-
-    // For fields of type NEW_PASSWORD and ACCOUNT_CREATION_PASSWORD, this may
-    // specify requirements for the generation of passwords.
-    optional PasswordRequirementsSpec password_requirements = 9;
-  }
-}

components/autofill/core/browser/proto/server.proto

@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-// Data models to interface with both legacy and Autofill API v1 servers.
+// Data models to interface with legacy Autofill API.
 
 syntax = "proto2";
 
@@ -12,6 +12,51 @@ package autofill;
 
 import "password_requirements.proto";
 
+// Request to query field suggestions for forms in a page from legacy Autofill
+// API.
+// Next available id: 15
+message AutofillQueryContents {
+  reserved 11;  // Reserved for server use.
+  required string client_version = 1;
+  repeated group Form = 2 {
+    required fixed64 signature = 3;
+    optional AutofillRandomizedFormMetadata form_metadata = 12;
+    repeated group Field = 4 {
+      required fixed32 signature = 5;
+      optional string name = 8;
+      optional string type = 9;  // Control type.
+      optional AutofillRandomizedFieldMetadata field_metadata = 13;
+    }
+  }
+  repeated int64 experiments = 14;
+}
+
+// Response from Autofill query on the legacy API that gives field suggestions
+// for forms of a page in a flattened representation. The fields are returned in
+// the exact same order as filled in the request.
+// Next available id: 10
+message AutofillQueryResponseContents {
+  optional bool upload_required = 1 [deprecated = true];
+  repeated group Field = 2 {
+    required fixed32 overall_type_prediction = 3;
+    // Detailed list of all possible predictions (including
+    // |overall_type_prediction| as the first item).
+    message FieldPrediction {
+      // The predicted field type.
+      optional fixed32 type = 1;
+
+      // True if the serverside classification believes that the field
+      // may be pre-filled with a placeholder in the value attribute.
+      optional bool may_use_prefilled_placeholder = 2;
+    }
+    repeated FieldPrediction predictions = 7;
+
+    // For fields of type NEW_PASSWORD and ACCOUNT_CREATION_PASSWORD, this may
+    // specify requirements for the generation of passwords.
+    optional PasswordRequirementsSpec password_requirements = 9;
+  }
+}
+
 // This message contains a randomized encoding of a string, where each bit
 // in the encoded string is randomly sent as either the true value seen by
 // the client, or random noise. The mapping of specific bits in the encoded