Extract simpler classes for observing context lifecycle and observe Page lifecycle inNavigatorVibra…

Source/core/core.gypi

 {
     'variables': {
         'core_idl_files': [
             'css/CSS.idl',
             'css/CSSCharsetRule.idl',
             'css/CSSFontFaceLoadEvent.idl',
             'css/CSSFontFaceRule.idl',
             'css/CSSHostRule.idl',
             'css/CSSImportRule.idl',
             'css/CSSMediaRule.idl',
@@ skipping 1164 matching lines @@
             'page/MouseEventWithHitTestResults.h',
             'page/Navigator.cpp',
             'page/Navigator.h',
             'page/NavigatorBase.cpp',
             'page/NavigatorBase.h',
             'page/Page.cpp',
             'page/PageConsole.cpp',
             'page/PageGroup.cpp',
             'page/PageGroupLoadDeferrer.cpp',
             'page/PageGroupLoadDeferrer.h',
+            'page/PageLifecycleNotifier.cpp',
+            'page/PageLifecycleNotifier.h',
+            'page/PageLifecycleObserver.cpp',
+            'page/PageLifecycleObserver.h',
             'page/PagePopupController.cpp',
             'page/PagePopupController.h',
             'page/PagePopupClient.cpp',
             'page/PagePopupClient.h',
             'page/PageScaleConstraints.cpp',
             'page/PageScaleConstraints.h',
             'page/PageScaleConstraintsSet.cpp',
             'page/PageScaleConstraintsSet.h',
             'page/PageSerializer.cpp',
             'page/PageVisibilityState.cpp',
@@ skipping 702 matching lines @@
             'dom/ScriptableDocumentParser.cpp',
             'dom/ScriptableDocumentParser.h',
             'dom/ScriptedAnimationController.cpp',
             'dom/ScriptedAnimationController.h',
             'dom/SecurityContext.cpp',
             'dom/SecurityContext.h',
             'dom/SecurityPolicyViolationEvent.h',
             'dom/SelectorQuery.cpp',
             'dom/SelectorQuery.h',
             'dom/SimulatedClickOptions.h',
+            'dom/SimpleLifecycleContext.cpp',
+            'dom/SimpleLifecycleContext.h',
+            'dom/SimpleLifecycleNotifier.cpp',
+            'dom/SimpleLifecycleNotifier.h',
+            'dom/SimpleLifecycleObserver.cpp',
+            'dom/SimpleLifecycleObserver.h',

[abarth-chromium, 2013/07/08 21:25:24]

The word "Simple" in a name is usually a bad sign.  In what way is it simple? 
Can we just drop the name (e.g., LifecycleObserver rather than
SimpleLifecycleObserver)?

[Michael van Ouwerkerk, 2013/07/09 17:09:12]

Agreed it's not a good naming practice. These were kind of placeholder names
while I mulled repurposing the ContextLifecycle* names. Just Lifecycle* looks ok
though. Done.

             'dom/SpaceSplitString.cpp',
             'dom/StaticNodeList.cpp',
             'dom/StaticNodeList.h',
             'dom/StringCallback.cpp',
             'dom/StringCallback.h',
             'dom/StyleElement.cpp',
             'dom/StyleElement.h',
             'dom/TagNodeList.cpp',
             'dom/TagNodeList.h',
             'dom/Text.cpp',
@@ skipping 1810 matching lines @@
                 'bison_exe': 'bison',
                 # We specify a preprocess so it happens locally and won't get
                 # distributed to goma.
                 # FIXME: /usr/bin/gcc won't exist on OSX forever. We want to
                 # use /usr/bin/clang once we require Xcode 4.x.
                 'preprocessor': '--preprocessor "/usr/bin/gcc -E -P -x c++"'
               }],
          ],
     }
 }