Revert "Roll chromium_revision e1ef7d4b6b..b47e7752c6 (568794:569173)"

This reverts commit fd2457b10fc2713bfd5d86952216cf89b6283a90.

Reason for revert: <INSERT REASONING HERE>

Original change's description:
> Roll chromium_revision e1ef7d4b6b..b47e7752c6 (568794:569173)
> 
> Change log: e1ef7d4b6b..b47e7752c6
> Full diff: e1ef7d4b6b..b47e7752c6
> 
> Roll chromium third_party ab9fbe29c9..630af48a96
> Change log: ab9fbe29c9..630af48a96
> 
> Changed dependencies:
> * src/base: 03e1bc561f..6070b24b9f
> * src/build: bb306be407..511e258eee
> * src/ios: 48697bf3a1..ce1db7deb1
> * src/testing: 6440c4ea3a..80a4cfaab7
> * src/third_party/catapult: https://chromium.googlesource.com/catapult.git/+log/f153b902be..f3c454475a
> * src/third_party/depot_tools: 1cabdc4643..a28b14f122
> * src/tools: 66f1089d0c..f6bb2a6fb4
> DEPS diff: e1ef7d4b6b..b47e7752c6/DEPS
> 
> No update to Clang.
> 
> TBR=buildbot@webrtc.org,
> BUG=None
> CQ_INCLUDE_TRYBOTS=master.internal.tryserver.corp.webrtc:linux_internal
> NO_AUTOIMPORT_DEPS_CHECK=true
> 
> Change-Id: I7553549111225f2c5bc769dec114cd058ae699d5
> Reviewed-on: https://webrtc-review.googlesource.com/84600
> Reviewed-by: WebRTC Buildbot <buildbot@webrtc.org>
> Commit-Queue: WebRTC Buildbot <buildbot@webrtc.org>
> Cr-Commit-Position: refs/heads/master@{#23692}

TBR=buildbot@webrtc.org

Change-Id: I7d136553622fe4c4e49dbd9c60406811a8b11bd8
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: None
Cq-Include-Trybots: master.internal.tryserver.corp.webrtc:linux_internal
Reviewed-on: https://webrtc-review.googlesource.com/84720
Reviewed-by: Artem Titov <titovartem@webrtc.org>
Commit-Queue: Artem Titov <titovartem@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#23708}

third_party/closure_compiler/externs/input_method_private.js

@@ -22,6 +22,7 @@ chrome.inputMethodPrivate = {};
  *   isPhysicalKeyboardAutocorrectEnabled: boolean,
  *   isImeMenuActivated: boolean
  * }):void} callback Callback which is called with the config object.
+ * @see https://developer.chrome.com/extensions/inputMethodPrivate#method-getInputMethodConfig
  */
 chrome.inputMethodPrivate.getInputMethodConfig = function(callback) {};
 
@@ -32,6 +33,7 @@ chrome.inputMethodPrivate.getInputMethodConfig = function(callback) {};
  *   name: string,
  *   indicator: string
  * }>):void} callback Callback which is called with the input method objects.
+ * @see https://developer.chrome.com/extensions/inputMethodPrivate#method-getInputMethods
  */
 chrome.inputMethodPrivate.getInputMethods = function(callback) {};
 
@@ -39,6 +41,7 @@ chrome.inputMethodPrivate.getInputMethods = function(callback) {};
  * Gets the current input method.
  * @param {function(string):void} callback Callback which is called with the
  *     current input method.
+ * @see https://developer.chrome.com/extensions/inputMethodPrivate#method-getCurrentInputMethod
  */
 chrome.inputMethodPrivate.getCurrentInputMethod = function(callback) {};
 
@@ -48,6 +51,7 @@ chrome.inputMethodPrivate.getCurrentInputMethod = function(callback) {};
  *     method.
  * @param {function():void=} callback Callback which is called once the current
  *     input method is set. If unsuccessful $(ref:runtime.lastError) is set.
+ * @see https://developer.chrome.com/extensions/inputMethodPrivate#method-setCurrentInputMethod
  */
 chrome.inputMethodPrivate.setCurrentInputMethod = function(inputMethodId, callback) {};
 
@@ -55,6 +59,7 @@ chrome.inputMethodPrivate.setCurrentInputMethod = function(inputMethodId, callba
  * Fetches a list of all the words currently in the dictionary.
  * @param {function(!Array<string>):void} callback Callback which is called once
  *     the list of dictionary words are ready.
+ * @see https://developer.chrome.com/extensions/inputMethodPrivate#method-fetchAllDictionaryWords
  */
 chrome.inputMethodPrivate.fetchAllDictionaryWords = function(callback) {};
 
@@ -63,6 +68,7 @@ chrome.inputMethodPrivate.fetchAllDictionaryWords = function(callback) {};
  * @param {string} word A new word to add to the dictionary.
  * @param {function():void=} callback Callback which is called once the word is
  *     added. If unsuccessful $(ref:runtime.lastError) is set.
+ * @see https://developer.chrome.com/extensions/inputMethodPrivate#method-addWordToDictionary
  */
 chrome.inputMethodPrivate.addWordToDictionary = function(word, callback) {};
 
@@ -70,6 +76,7 @@ chrome.inputMethodPrivate.addWordToDictionary = function(word, callback) {};
  * Gets whether the encrypt sync is enabled.
  * @param {function(boolean):void=} callback Callback which is called to provide
  *     the result.
+ * @see https://developer.chrome.com/extensions/inputMethodPrivate#method-getEncryptSyncEnabled
  */
 chrome.inputMethodPrivate.getEncryptSyncEnabled = function(callback) {};
 
@@ -78,35 +85,41 @@ chrome.inputMethodPrivate.getEncryptSyncEnabled = function(callback) {};
  * @param {string} xkb_name The XKB layout name.
  * @param {function():void=} callback Callback which is called when the layout
  *     is set.
+ * @see https://developer.chrome.com/extensions/inputMethodPrivate#method-setXkbLayout
  */
 chrome.inputMethodPrivate.setXkbLayout = function(xkb_name, callback) {};
 
 /**
  * Fired when the input method is changed.
  * @type {!ChromeEvent}
+ * @see https://developer.chrome.com/extensions/inputMethodPrivate#event-onChanged
  */
 chrome.inputMethodPrivate.onChanged;
 
 /**
  * Fired when the composition bounds or cursor bounds are changed.
  * @type {!ChromeEvent}
+ * @see https://developer.chrome.com/extensions/inputMethodPrivate#event-onCompositionBoundsChanged
  */
 chrome.inputMethodPrivate.onCompositionBoundsChanged;
 
 /**
  * Fired when the custom spelling dictionary is loaded.
  * @type {!ChromeEvent}
+ * @see https://developer.chrome.com/extensions/inputMethodPrivate#event-onDictionaryLoaded
  */
 chrome.inputMethodPrivate.onDictionaryLoaded;
 
 /**
  * Fired when words are added or removed from the custom spelling dictionary.
  * @type {!ChromeEvent}
+ * @see https://developer.chrome.com/extensions/inputMethodPrivate#event-onDictionaryChanged
  */
 chrome.inputMethodPrivate.onDictionaryChanged;
 
 /**
  * Fired when the IME menu is activated or deactivated.
  * @type {!ChromeEvent}
+ * @see https://developer.chrome.com/extensions/inputMethodPrivate#event-onImeMenuActivationChanged
  */
 chrome.inputMethodPrivate.onImeMenuActivationChanged;