Mark as to be deprecated

PiperOrigin-RevId: 468758723

Author: Janette James

components/Cards/src/MDCCard.h

@@ -21,6 +21,8 @@
 
 @protocol MDCShapeGenerating;
 
+API_DEPRECATED_BEGIN("Use a branded UIView instead.", ios(12, API_TO_BE_DEPRECATED))
+
 // TODO(b/238930139): Remove usage of this deprecated API.
 #pragma clang diagnostic push
 #pragma clang diagnostic ignored "-Wdeprecated-declarations"
@@ -176,3 +178,5 @@
     "Shape generators are no longer supported.", ios(12, 12));
 
 @end
+
+API_DEPRECATED_END

components/Cards/src/MDCCardCollectionCell.h

@@ -20,6 +20,8 @@
 
 @protocol MDCShapeGenerating;
 
+API_DEPRECATED_BEGIN("Use a branded UICollectionViewCell instead.", ios(12, API_TO_BE_DEPRECATED))
+
 /**
  Through the lifecycle of the cell, the cell can go through one of the 3 states,
  normal, highlighted, and selected. The cell starts in its default state, normal.
@@ -340,3 +342,5 @@ typedef NS_ENUM(NSInteger, MDCCardCellVerticalImageAlignment) {
     "Shape generators are no longer supported.", ios(12, 12));
 
 @end
+
+API_DEPRECATED_END

components/Cards/src/UICollectionViewController+MDCCardReordering.h

@@ -23,6 +23,7 @@
  for more information. It will make sure that the underlying longPressGestureRecognizer
  doesn't cancel the ink tap visual causing the ink to disappear once the reorder begins.
  */
-- (void)mdc_setupCardReordering;
+- (void)mdc_setupCardReordering API_DEPRECATED(
+    "Use a branded UIView or UICollectionViewCell instead.", ios(12, API_TO_BE_DEPRECATED));
 
 @end

contributing/code-conventions.md

@@ -42,7 +42,7 @@ tests, and demonstration apps.
 ### Style
 
 Material Components for iOS follows [Google's Objective-C style
-guide](https://github.com/google/styleguide/blob/gh-pages/objcguide.md) for Objective-C code. Note that the
+guide](https://google.github.io/styleguide/objcguide.xml) for Objective-C code. Note that the
 Objective-C style guide uses the [Google C++ style
 guide](https://google.github.io/styleguide/cppguide.html) as its "superclass", meaning that rules
 from the C++ style guide are in effect unless the Objective-C style guide indicates otherwise.