* chore: migrate from base::StringPiece to std::string_view in keyboard_util.cc
* chore: migrate from base::StringPiece to std::string_view in error_thrower.cc
* chore: migrate from base::StringPiece to std::string_view in electron_api_web_contents.cc
* chore: migrate from base::StringPiece to std::string_view in gin_helper/dictionary.h
* chore: migrate from base::StringPiece to std::string_view in electron_api_url_loader.cc
* chore: phase out internal use of base:::StringPiece
`base::StringPiece` is being phased out upstream. Its code has been
removed upstream and it's just a typedef for `std::string_view`.
They haven't removed the typedef yet, so this PR tries to get ahead
of future breakage by migrating "internal" use (i.e. leaving alone the
places where the `base::StringPiece` name is coming from an upstream
method that we override).
Xref: https://bugs.chromium.org/p/chromium/issues/detail?id=691162
Xref: 4294483
Xref: https://docs.google.com/document/d/1d4RnD1uAE2t4iANR0nXy82ASIPGsPuw2mpO6v6T7JKs
* fix: ensure ElectronBrowser mojo service is only bound to authorized render frames
Notes: no-notes
* refactor: extract electron API IPC to its own mojo interface
* fix: just check main frame not primary main frame
* refactor: convert Menu and globalShortcut to gin
* refactor: convert api::Cookies to gin
* refactor: convert View and WebContentsView to gin
* refactor: convert WebContents related classes to gin
* refactor: convert powerMonitor to gin
* refactor: prepare for header change
* refactor: remove last uses of mate::EventEmitter
* refactor: remove mate::EventEmitter
* refactor: move trackable_object to gin_helper
* fix: custom converter should not use Handle
* fix: no more need to check if icon is empty
It was a bug that the Handle<NativeImage> can be non-empty when the
image file does not exist. The bug was caused by the converter code
writing out the image even when the convertion fails.
The bug was work-arounded by adding an additional check, but since the
original bug had been fixed, the additional check is no longer needed.
* fix: should always set frameId even when callback is null
* fix: do not mix gin/mate handles for NativeImage
* refactor: remove direct uses of event_emitter_deprecated.h
* refactor: remove event_emitter_deprecated.h in api::App
* refactor: use std::move to save a copy
* fix: windows and linux builds
* refactor: remove a few uses of native_mate/gfx_converter.h
* refactor: deprecate mate::EventEmitter
* refactor: add gin_helper::EventEmitter
* refactor: convert a few classes to use gin_helper::EventEmitter
* refactor: get rid of native_mate_converters/gfx_converter.h
* fix: follow native_mate on reporting errors
* fix: gin is weak at guessing parameter types
* fix: incorrect full class name
* fix: gin::Handle does not accept null
