ci: auto-3way patches and detect changes (#22976)

patches/chromium/render_widget_host_view_mac.patch

@@ -25,7 +25,7 @@ index c242af13bdf58b1c830781badaf27aadc3c0179b..2ba56a1951c7a1a76c5a6ecef1d04235
  // These are not documented, so use only after checking -respondsToSelector:.
  @interface NSApplication (UndocumentedSpeechMethods)
  - (void)speakString:(NSString*)string;
-@@ -573,6 +578,9 @@ - (BOOL)acceptsMouseEventsWhenInactive {
+@@ -573,6 +578,9 @@ void ExtractUnderlines(NSAttributedString* string,
  }
  
  - (BOOL)acceptsFirstMouse:(NSEvent*)theEvent {
@@ -35,7 +35,7 @@ index c242af13bdf58b1c830781badaf27aadc3c0179b..2ba56a1951c7a1a76c5a6ecef1d04235
    return [self acceptsMouseEventsWhenInactive];
  }
  
-@@ -983,6 +991,10 @@ - (void)keyEvent:(NSEvent*)theEvent wasKeyEquivalent:(BOOL)equiv {
+@@ -983,6 +991,10 @@ void ExtractUnderlines(NSAttributedString* string,
                                eventType == NSKeyDown &&
                                !(modifierFlags & NSCommandKeyMask);
  
@@ -46,7 +46,7 @@ index c242af13bdf58b1c830781badaf27aadc3c0179b..2ba56a1951c7a1a76c5a6ecef1d04235
    // We only handle key down events and just simply forward other events.
    if (eventType != NSKeyDown) {
      _hostHelper->ForwardKeyboardEvent(event, latency_info);
-@@ -1759,9 +1771,11 @@ - (NSAccessibilityRole)accessibilityRole {
+@@ -1759,9 +1771,11 @@ void ExtractUnderlines(NSAttributedString* string,
  // Since this implementation doesn't have to wait any IPC calls, this doesn't
  // make any key-typing jank. --hbono 7/23/09
  //
@@ -58,7 +58,7 @@ index c242af13bdf58b1c830781badaf27aadc3c0179b..2ba56a1951c7a1a76c5a6ecef1d04235
  
  - (NSArray*)validAttributesForMarkedText {
    // This code is just copied from WebKit except renaming variables.
-@@ -1770,7 +1784,10 @@ - (NSArray*)validAttributesForMarkedText {
+@@ -1770,7 +1784,10 @@ extern NSString* NSTextInputReplacementRangeAttributeName;
          initWithObjects:NSUnderlineStyleAttributeName,
                          NSUnderlineColorAttributeName,
                          NSMarkedClauseSegmentAttributeName,