Move WebCache from public/web into public/platform

third_party/WebKit/Source/platform/BUILD.gn

 # Copyright 2014 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.
 
 import("//build/config/features.gni")
 import("//build/config/ui.gni")
 import("//testing/libfuzzer/fuzzer_test.gni")
 import("//testing/test.gni")
 import("//third_party/WebKit/public/public_features.gni")
 import("//third_party/WebKit/Source/build/scripts/scripts.gni")
@@ skipping 490 matching lines @@
     "credentialmanager/PlatformPasswordCredential.cpp",
     "credentialmanager/PlatformPasswordCredential.h",
     "exported/InterfaceRegistry.cpp",
     "exported/Platform.cpp",
     "exported/ServiceRegistry.cpp",
     "exported/WebActiveGestureAnimation.cpp",
     "exported/WebActiveGestureAnimation.h",
     "exported/WebAudioBus.cpp",
     "exported/WebAudioDevice.cpp",
     "exported/WebBlobData.cpp",
+    "exported/WebCache.cpp",
     "exported/WebCanvasCaptureHandler.cpp",
     "exported/WebContentDecryptionModule.cpp",
     "exported/WebContentDecryptionModuleAccess.cpp",
     "exported/WebContentDecryptionModuleResult.cpp",
     "exported/WebContentDecryptionModuleSession.cpp",
     "exported/WebContentSettingCallbacks.cpp",
     "exported/WebCredential.cpp",
     "exported/WebCryptoAlgorithm.cpp",
     "exported/WebCryptoKey.cpp",
     "exported/WebCryptoKeyAlgorithm.cpp",
@@ skipping 1593 matching lines @@
     "//third_party/WebKit/Source:config",
     "//third_party/WebKit/Source:inside_blink",
   ]
 
   deps = [
     ":test_support",
     "//testing/gmock",
     "//testing/gtest",
   ]
 }