docs: fix spelling errors in code comments (#45842)

chore: Fix typos

shell/browser/ui/devtools_ui_theme_data_source.cc

@@ -195,7 +195,7 @@ void ThemeDataSource::SendColorsCss(
     css_selector = ":host";
   } else {
     // This selector requires more specificity than other existing CSS
-    // selectors that define variables. We increase the specifity by adding
+    // selectors that define variables. We increase the specificity by adding
     // a pseudoselector.
     css_selector = "html:not(#z)";
   }

shell/browser/ui/views/submenu_button.cc

@@ -23,7 +23,7 @@ SubmenuButton::SubmenuButton(PressedCallback callback,
     : views::MenuButton(std::move(callback), gfx::RemoveAccelerator(title)),
       background_color_(background_color) {
 #if BUILDFLAG(IS_LINUX)
-  // Dont' use native style border.
+  // Don't use native style border.
   SetBorder(CreateDefaultBorder());
 #endif
   SetAccessibleRole(ax::mojom::Role::kPopUpButton);

shell/browser/ui/win/electron_desktop_window_tree_host_win.cc

@@ -99,7 +99,7 @@ bool ElectronDesktopWindowTreeHostWin::HandleMouseEventForCaption(
   // Chromium lets the OS handle caption buttons for FrameMode::SYSTEM_DRAWN but
   // again this does not generate the SC_MINIMIZE, SC_MAXIMIZE, SC_RESTORE
   // commands when Non-client mouse events are generated for HTCLOSE,
-  // HTMINBUTTON, HTMAXBUTTON. To workaround this issue, wit this delegate we
+  // HTMINBUTTON, HTMAXBUTTON. To workaround this issue, with this delegate we
   // let chromium handle the mouse events via
   // HWNDMessageHandler::HandleMouseInputForCaption instead of the OS and this
   // will generate the necessary system commands to perform caption button