move //components/payments/content/*.mojom files to //components/payments/mojom

To break dependency of //components/webdata_services on //components/payments/content after
landing https://codereview.chromium.org/2801513002/

BUG=711952

Review-Url: https://codereview.chromium.org/2811593009
Cr-Original-Original-Commit-Position: refs/heads/master@{#464877}
Committed: https://chromium.googlesource.com/chromium/src/+/b1b326893990633387f90546607ce8271d151a3a
Review-Url: https://codereview.chromium.org/2811593009
Cr-Original-Commit-Position: refs/heads/master@{#464882}
Committed: https://chromium.googlesource.com/chromium/src/+/3e1cedb46b52e6c09243993671a5a0ddb7a4eeed
Review-Url: https://codereview.chromium.org/2811593009
Cr-Commit-Position: refs/heads/master@{#464892}

• chrome/android/BUILD.gn[diff]
• chrome/browser/BUILD.gn[diff]
• chrome/browser/android/payments/service_worker_payment_app_bridge.cc[diff]
• chrome/browser/chrome_content_browser_client.cc[diff]
• chrome/browser/payments/payment_request_factory.h[diff]
• chrome/browser/ui/views/payments/payment_request_browsertest_base.h[diff]
• chrome/browser/ui/views/payments/payment_request_views_util.h[diff]
• components/payments/android/BUILD.gn[diff]
• components/payments/android/DEPS[diff]
• components/payments/android/web_app_manifest_section_table.h[diff]
• components/payments/content/BUILD.gn[diff]
• components/payments/content/android/BUILD.gn[diff]
• components/payments/content/android/payment_details_validation_android.cc[diff]
• components/payments/content/payment_details_validation.cc[diff]
• components/payments/content/payment_details_validation.h[diff]
• components/payments/content/payment_manifest_parser_host.h[diff]
• components/payments/content/payment_request.h[diff]
• components/payments/content/payment_request_spec.h[diff]
• components/payments/content/payment_request_spec_unittest.cc[diff]
• components/payments/content/payment_request_state.h[diff]
• components/payments/content/payment_request_state_unittest.cc[diff]
• components/payments/content/payment_request_web_contents_manager.h[diff]
• components/payments/content/payment_response_helper.h[diff]
• components/payments/content/payment_response_helper_unittest.cc[diff]
• components/payments/content/payments_validators.h[diff]
• components/payments/content/utility/BUILD.gn[diff]
• components/payments/content/utility/payment_manifest_parser.h[diff]
• components/payments/mojom/BUILD.gn[Added - diff]
• components/payments/mojom/OWNERS[Renamed from components/payments/content/OWNERS - diff]
• components/payments/mojom/payment_app.mojom[Renamed from components/payments/content/payment_app.mojom - diff]
• components/payments/mojom/payment_manifest_parser.mojom[Renamed from components/payments/content/payment_manifest_parser.mojom - diff]
• components/payments/mojom/payment_request.mojom[Renamed from components/payments/content/payment_request.mojom - diff]
• content/browser/BUILD.gn[diff]
• content/browser/payments/payment_app_browsertest.cc[diff]
• content/browser/payments/payment_app_content_unittest_base.h[diff]
• content/browser/payments/payment_app_context_impl.h[diff]
• content/browser/payments/payment_app_database.h[diff]
• content/browser/payments/payment_app_provider_impl_unittest.cc[diff]
• content/browser/payments/payment_manager.h[diff]
• content/browser/payments/payment_manager_unittest.cc[diff]
• content/common/BUILD.gn[diff]
• content/common/service_worker/service_worker_event_dispatcher.mojom[diff]
• content/public/browser/DEPS[diff]
• content/public/browser/payment_app_provider.h[diff]
• content/renderer/BUILD.gn[diff]
• content/renderer/service_worker/service_worker_context_client.h[diff]
• content/renderer/service_worker/service_worker_type_converters.h[diff]
• content/test/BUILD.gn[diff]
• third_party/WebKit/LayoutTests/payments/resources/payment-request-mock.js[diff]
• third_party/WebKit/Source/modules/BUILD.gn[diff]
• third_party/WebKit/Source/modules/payments/BUILD.gn[diff]
• third_party/WebKit/Source/modules/payments/PaymentAddress.h[diff]
• third_party/WebKit/Source/modules/payments/PaymentManager.h[diff]
• third_party/WebKit/Source/modules/payments/PaymentRequest.h[diff]
• third_party/WebKit/Source/modules/payments/PaymentResponse.h[diff]
• third_party/WebKit/Source/modules/payments/PaymentTestHelper.h[diff]
• third_party/WebKit/Source/modules/payments/PaymentsValidators.h[diff]
• third_party/WebKit/public/BUILD.gn[diff]