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* Make accessible scroll position attributes more generic anddmazzoni@chromium.org2011-12-021-3/+7
| | | | | | | | | | | add attributes for the min and max scroll position, as the first step towards implementing accessible scrolling APIs. BUG=104468 TEST=none Review URL: http://codereview.chromium.org/8776026 git-svn-id: svn://svn.chromium.org/chrome/trunk/src@112814 0039d316-1c4b-4281-b951-d872f2087c98
* Add exports needed for glue to build as a component.dpranke@chromium.org2011-12-021-1/+2
| | | | | | | | | | | | | This adds WEBKIT_GLUE_EXPORT, WEBKIT_PLUGINS_EXPORT, and WEBKIT_EXTENSIONS_EXPORT macros that are used by the files in webkit/{glue,plugins,extensions} to show what needs to be exported from a DLL. R=darin@chromium.org BUG=98755 TEST=waterfall stays green. Review URL: http://codereview.chromium.org/8741006 git-svn-id: svn://svn.chromium.org/chrome/trunk/src@112748 0039d316-1c4b-4281-b951-d872f2087c98
* Add support for accessible labels for controls.dmazzoni@chromium.org2011-10-211-0/+3
| | | | | | | | | | | | This implements TitleUIElement on Mac, and IAccessibleRelation on Windows. BUG=89197 TEST=Manual testing with JAWS, NVDA, and VoiceOver. Review URL: http://codereview.chromium.org/8359012 git-svn-id: svn://svn.chromium.org/chrome/trunk/src@106787 0039d316-1c4b-4281-b951-d872f2087c98
* Rewrites renderer accessibility to not use WebAccessibilityCache.dmazzoni@chromium.org2011-09-291-8/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | This fixes the primary underlying cause of a number of bugs where the browser's accessibility tree got out of sync with the renderer's accessibility tree, which makes the page seem not functional anymore. Splits renderer accessibility code out of render_view.cc into its own file. All code now uses the axID directly from WebCore::AccessibilityObject rather than WebAccessibilityCache, which can now be deleted. One implication of this is that the top-level node can now change its ID, so we introduce a new role ROLE_ROOT_WEB_AREA to distinguish it from an iframe's ROLE_WEB_AREA node. To solve the problem of getting out of sync, the renderer now maintains a tree of axIDs that reflects the state of the tree as of the most recent message sent to the browser. Whenever a new accessibility notification is posted, it refers to that tree to determine precisely what information needs to be sent to the browser, eliminating problems where the renderer was posting notifications about nodes that the browser didn't know about. BUG=93095,93232,92716,90787,90768 TEST=updated lots of tests Review URL: http://codereview.chromium.org/7966013 git-svn-id: svn://svn.chromium.org/chrome/trunk/src@103249 0039d316-1c4b-4281-b951-d872f2087c98
* Ensure WebKit's "canSetValue" attribute is reflected in Chrome's ↵aboxhall@chromium.org2011-09-291-1/+4
| | | | | | | | | | | | accessibility tree. BUG=none TEST=RendererAccessibilityBrowserTest.CrossPlatformWritableElement Review URL: http://codereview.chromium.org/8050003 git-svn-id: svn://svn.chromium.org/chrome/trunk/src@103217 0039d316-1c4b-4281-b951-d872f2087c98
* Add routing id and notification type to accessibility logging.dtseng@chromium.org2011-09-211-1/+3
| | | | | | | | | | BUG=none TEST=manual. Review URL: http://codereview.chromium.org/7867018 git-svn-id: svn://svn.chromium.org/chrome/trunk/src@102167 0039d316-1c4b-4281-b951-d872f2087c98
* Fix the readonly state in the Mac accessibility tree.dmazzoni@chromium.org2011-09-091-0/+3
| | | | | | | | | | | | | | | | In r99161 (http://codereview.chromium.org/7745035), WebAccessibilityObject's READONLY was changed to behave better on Win, but that broke Mac. This change reverts READONLY to the previous working behavior and adds a new flag for Win that doesn't interfere with Mac. BUG=95562 TEST=manual testing on Mac and Win Review URL: http://codereview.chromium.org/7857026 git-svn-id: svn://svn.chromium.org/chrome/trunk/src@100481 0039d316-1c4b-4281-b951-d872f2087c98
* Add a big grab bag of missing web accessibilitydmazzoni@chromium.org2011-09-011-5/+56
| | | | | | | | | | | | | | | | | | | functionality on Windows. (Much of this will benefit Mac in a future changelist.) Improvements include dozens of corrected roles and states for various elements, improved support for tables with rowspan and colspan, range control support, and live region support. Also adds a new command-line flag to turn on logging of accessibility events, to help making this type of bug fixing much easier in the future. BUG=89181,89185,89187,89188,89202,89205,89210,89212,89213,89223 TEST=Manual testing with JAWS, NVDA, AViewer, and accProbe. Review URL: http://codereview.chromium.org/7745035 git-svn-id: svn://svn.chromium.org/chrome/trunk/src@99161 0039d316-1c4b-4281-b951-d872f2087c98
* Implement IAccessibleTable and IAccessibleTableCell so that screendmazzoni@chromium.org2011-07-201-11/+28
| | | | | | | | | | | readers can access HTML tables. BUG=66874,89220,89221 TEST=Adds new tests. Review URL: http://codereview.chromium.org/7358004 git-svn-id: svn://svn.chromium.org/chrome/trunk/src@93249 0039d316-1c4b-4281-b951-d872f2087c98
* Support for accessible multiline text editing for Windowsdmazzoni@chromium.org2011-06-151-1/+2
| | | | | | | | | | | screen readers. Tested with JAWS and NVDA. BUG=85253 TEST=manual testing Review URL: http://codereview.chromium.org/7104142 git-svn-id: svn://svn.chromium.org/chrome/trunk/src@89258 0039d316-1c4b-4281-b951-d872f2087c98
* Move a bunch of renderer->browser messages to content.jam@chromium.org2011-03-231-2/+2
| | | | | | | TBR=tsepez Review URL: http://codereview.chromium.org/6721021 git-svn-id: svn://svn.chromium.org/chrome/trunk/src@79152 0039d316-1c4b-4281-b951-d872f2087c98
* Fix handling of case where the same AccessibilityObject appears as admazzoni@chromium.org2011-03-141-3/+6
| | | | | | | | | | | | child of more than one parent. Add some additional DCHECKs so that such a problem would be caught even earlier if they were to reoccur. BUG=75496 TEST=Addes new browser test CrossPlatformMultipleInheritanceAccessibility2 Review URL: http://codereview.chromium.org/6683010 git-svn-id: svn://svn.chromium.org/chrome/trunk/src@78025 0039d316-1c4b-4281-b951-d872f2087c98
* Browser accessibility improvements so that screen readers can access moredmazzoni@chromium.org2011-03-081-1/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | complicated webpages without problems. First, WebAccessibility now works around a "multiple inheritance problem" in WebCore::AccessibilityObject where the same node appears as a child of multiple parents. For example, a table cell appears as a child of both a row and a column. This is solved by having each WebAccessibility parent check whether the child lists itself as an ancestor. If not, it notes the child's id only in a separate vector, so each child appears fully only once. Second, BrowserAccessibility now has internal reference counting, which allows BrowserAccessibilityManager to update any subtree while maximally reusing as many objects as possible. This fixes many screen reader interaction problems! All of this new functionality is tested with new cross-platform tests. BUG=67192 BUG=67620 TEST=Adds new unit tests and a browser test. Review URL: http://codereview.chromium.org/6625042 git-svn-id: svn://svn.chromium.org/chrome/trunk/src@77316 0039d316-1c4b-4281-b951-d872f2087c98
* Roll WebKit DEPS past WebKit move. Update gyp files and include paths to ↵abarth@chromium.org2011-01-171-1/+1
| | | | | | reflect the move. Consolidate how we DEPS in WebKit source files. Cross fingers. git-svn-id: svn://svn.chromium.org/chrome/trunk/src@71586 0039d316-1c4b-4281-b951-d872f2087c98
* Rename ATTR_LINK_TARGET to ATTR_URL and assign it within ↵ctguil@chromium.org2010-12-201-1/+1
| | | | | | | | webaccessibility.BUG=noneTEST=none Review URL: http://codereview.chromium.org/5698002 git-svn-id: svn://svn.chromium.org/chrome/trunk/src@69751 0039d316-1c4b-4281-b951-d872f2087c98
* Only send child node updates on load and children changed notifications.ctguil@chromium.org2010-11-051-2/+6
| | | | | | | | | BUG=none TEST=interactive_ui_tests:AccessibilityWinBrowserTest.* Review URL: http://codereview.chromium.org/4272002 git-svn-id: svn://svn.chromium.org/chrome/trunk/src@65170 0039d316-1c4b-4281-b951-d872f2087c98
* Add basic support for accessibility hit testing within web contents.ctguil@chromium.org2010-11-031-0/+2
| | | | | | | | | BUG=59890 TEST=Manual. Inspect32. Review URL: http://codereview.chromium.org/4292001 git-svn-id: svn://svn.chromium.org/chrome/trunk/src@64943 0039d316-1c4b-4281-b951-d872f2087c98
* Make the selection start and end attributes of an html input controldmazzoni@chromium.org2010-10-011-0/+4
| | | | | | | | | | | | accessible, implement IAccessibleText methods to retrieve this info, and post a notification when the cursor moves within a text field. BUG=none TEST=Added new test to renderer_accessibility_browsertest Review URL: http://codereview.chromium.org/3389037 git-svn-id: svn://svn.chromium.org/chrome/trunk/src@61216 0039d316-1c4b-4281-b951-d872f2087c98
* Support additional webkit accessibility notifications and states. ctguil@chromium.org2010-09-251-0/+6
| | | | | | | | | | | | | | | | 1. Update WebAccessibility::ConvertState to function similarly to WebCore's AccessibleBase::get_accState. 2. Use WebKit's load complete notification to send the renderer's tree to the browser. We enable accessibility on the renderer now instead of requesting a tree. 3. Use WebKit's focused ui element notification to send renderer focus events to the browser. BUG=13291 BUG=38106 TEST=interactive_ui_tests:AccessibilityWinBrowserTest.TestNotificationActiveDescendantChanged TEST=interactive_ui_tests:AccessibilityWinBrowserTest.TestNotificationFocusChanged Review URL: http://codereview.chromium.org/3380017 git-svn-id: svn://svn.chromium.org/chrome/trunk/src@60569 0039d316-1c4b-4281-b951-d872f2087c98
* Remove use of accessible prop service from render_widget_host_view_win.ccctguil@chromium.org2010-09-161-0/+1
| | | | | | | | | BUG=none TEST=interactive_iu_tests:AccessibilityWinBrowserTest.TestRendererAccessibilityTree Review URL: http://codereview.chromium.org/3415008 git-svn-id: svn://svn.chromium.org/chrome/trunk/src@59693 0039d316-1c4b-4281-b951-d872f2087c98
* Add support for webkit ValueChanged accessibility notification.ctguil@chromium.org2010-09-161-2/+1
| | | | | | | | | BUG=13291 TEST=interactive_ui_tests:AccessibilityWinBrowserTest.TestNotification* Review URL: http://codereview.chromium.org/3341021 git-svn-id: svn://svn.chromium.org/chrome/trunk/src@59589 0039d316-1c4b-4281-b951-d872f2087c98
* Add html node info (tag name, attributes, and computed display) and documentdmazzoni@chromium.org2010-08-301-0/+12
| | | | | | | | | | | | | | info (url, title, mimetype, doctype) to WebAccessibility. BUG=none TEST=Modified unit test: RenderMessagesUnittest.WebAccessibility TEST=Added new browser test: RendererAccessibilityBrowserTest.TestCrossPlatformAccessibilityTree Committed: http://src.chromium.org/viewvc/chrome?view=rev&revision=57188 Review URL: http://codereview.chromium.org/3013035 git-svn-id: svn://svn.chromium.org/chrome/trunk/src@57866 0039d316-1c4b-4281-b951-d872f2087c98
* FBTF: Move code from headers into cc files.erg@google.com2010-08-271-0/+2
| | | | | | | | | BUG=none TEST=compiles Review URL: http://codereview.chromium.org/3219002 git-svn-id: svn://svn.chromium.org/chrome/trunk/src@57732 0039d316-1c4b-4281-b951-d872f2087c98
* Revert 57327 - Re-landing. Add html node info (tag name, attributes, and ↵dmazzoni@chromium.org2010-08-251-12/+0
| | | | | | | | | | | | | | | | computed display) and document info (url, title, mimetype, doctype) to WebAccessibility. BUG=none TEST=Modified unit test: RenderMessagesUnittest.WebAccessibility Review URL: http://codereview.chromium.org/3013035 TBR=dmazzoni@chromium.org Review URL: http://codereview.chromium.org/3132040 git-svn-id: svn://svn.chromium.org/chrome/trunk/src@57330 0039d316-1c4b-4281-b951-d872f2087c98
* Re-landing. Add html node info (tag name, attributes, and computed display)dmazzoni@chromium.org2010-08-251-0/+12
| | | | | | | | | | | and document info (url, title, mimetype, doctype) to WebAccessibility. BUG=none TEST=Modified unit test: RenderMessagesUnittest.WebAccessibility Review URL: http://codereview.chromium.org/3013035 git-svn-id: svn://svn.chromium.org/chrome/trunk/src@57327 0039d316-1c4b-4281-b951-d872f2087c98
* Revert 57188 - Add html node info (tag name, attributes, and computed ↵dmazzoni@chromium.org2010-08-241-12/+0
| | | | | | | | | | | | | | | | | display) and document info (url, title, mimetype, doctype) to WebAccessibility. BUG=none TEST=Modified unit test: RenderMessagesUnittest.WebAccessibility TEST=Added new browser test: RendererAccessibilityBrowserTest.TestCrossPlatformAccessibilityTree Review URL: http://codereview.chromium.org/3013035 TBR=dmazzoni@chromium.org Review URL: http://codereview.chromium.org/3173040 git-svn-id: svn://svn.chromium.org/chrome/trunk/src@57193 0039d316-1c4b-4281-b951-d872f2087c98
* Add html node info (tag name, attributes, and computed display) and documentdmazzoni@chromium.org2010-08-241-0/+12
| | | | | | | | | | | | info (url, title, mimetype, doctype) to WebAccessibility. BUG=none TEST=Modified unit test: RenderMessagesUnittest.WebAccessibility TEST=Added new browser test: RendererAccessibilityBrowserTest.TestCrossPlatformAccessibilityTree Review URL: http://codereview.chromium.org/3013035 git-svn-id: svn://svn.chromium.org/chrome/trunk/src@57188 0039d316-1c4b-4281-b951-d872f2087c98
* Windows accessibility improvements: 1. All WebKit roles are now passed to thedmazzoni@chromium.org2010-05-211-22/+95
| | | | | | | | | | | | | | | | | | browser and then converted to MSAA roles - this is both because the logic needs to be more complicated, and so we can support Mac accessibility, too. 2. The serializable object used to pass accessibility info from the renderer to the browser now uses a map for uncommon attributes, rather than having a bunch of fields that are almost always empty. 3. Handles the accSelect method with TAKE_FOCUS, allowing assistive technology to set focus to a particular control. 4. Implements several other IAccessible2 interfaces. BUG=25564 BUG=13291 TEST=None Review URL: http://codereview.chromium.org/2121004 git-svn-id: svn://svn.chromium.org/chrome/trunk/src@47922 0039d316-1c4b-4281-b951-d872f2087c98
* Reimplement accessibility of web content by caching the entire dmazzoni@chromium.org2010-05-111-113/+45
| | | | | | | | | | | | | | | | | | | | | | | | | | accessibility tree in the browser process. Adds new RPCs for a browser tab to request accessibility info from a renderer; the renderer responds with a complete tree of accessibility metadata for the entire DOM, which is then cached in the RenderWidgetHostView. This part is cross-platform and will help with accessibility on both Windows and Mac OS X. For Windows, MSAA support for web content has been rewritten to use this new cache. Tested in JAWS and NVDA screen readers. Using Chrome with a screen reader is now fast and stable, unlike the previous implementation. However, note that most advanced functionality is still not supported, and much work remains to make Chrome work well with a screen reader. This is a necessary step to improve stability first. BUG=25564 BUG=13291 TEST=See http://codereview.chromium.org/1806001 Review URL: http://codereview.chromium.org/1637018 git-svn-id: svn://svn.chromium.org/chrome/trunk/src@46916 0039d316-1c4b-4281-b951-d872f2087c98
* Revert 46842 - Reimplement accessibility of web content by caching the entire dmazzoni@chromium.org2010-05-101-45/+113
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | accessibility tree in the browser process. Adds new RPCs for a browser tab to request accessibility info from a renderer; the renderer responds with a complete tree of accessibility metadata for the entire DOM, which is then cached in the RenderWidgetHostView. This part is crossplatform and will help with accessibility on both Windows and Mac OS X. For Windows, MSAA support for web content has been rewritten to use this new cache. Tested in JAWS and NVDA screen readers. Using Chrome with a screen reader is now fast and stable, unlike the previous implementation. However, note that most advanced functionality is still not supported, and much work remains to make Chrome work well with a screen reader. This is a necessary step to improve stability first. BUG=25564 BUG=13291 TEST=See http://codereview.chromium.org/1806001 Review URL: http://codereview.chromium.org/1637018 TBR=dmazzoni@chromium.org Review URL: http://codereview.chromium.org/1989009 git-svn-id: svn://svn.chromium.org/chrome/trunk/src@46847 0039d316-1c4b-4281-b951-d872f2087c98
* Reimplement accessibility of web content by caching the entire dmazzoni@chromium.org2010-05-101-113/+45
| | | | | | | | | | | | | | | | | | | | | | | | | | accessibility tree in the browser process. Adds new RPCs for a browser tab to request accessibility info from a renderer; the renderer responds with a complete tree of accessibility metadata for the entire DOM, which is then cached in the RenderWidgetHostView. This part is cross-platform and will help with accessibility on both Windows and Mac OS X. For Windows, MSAA support for web content has been rewritten to use this new cache. Tested in JAWS and NVDA screen readers. Using Chrome with a screen reader is now fast and stable, unlike the previous implementation. However, note that most advanced functionality is still not supported, and much work remains to make Chrome work well with a screen reader. This is a necessary step to improve stability first. BUG=25564 BUG=13291 TEST=See http://codereview.chromium.org/1806001 Review URL: http://codereview.chromium.org/1637018 git-svn-id: svn://svn.chromium.org/chrome/trunk/src@46842 0039d316-1c4b-4281-b951-d872f2087c98
* Revert 46567 - Reimplement accessibility of web content by caching the entire zork@chromium.org2010-05-071-45/+113
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | accessibility tree in the browser process. Adds new RPCs for a browser tab to request accessibility info from a renderer; the renderer responds with a complete tree of accessibility metadata for the entire DOM, which is then cached in the RenderWidgetHostView. This part is crossplatform and will help with accessibility on both Windows and Mac OS X. For Windows, MSAA support for web content has been rewritten to use this new cache. Tested in JAWS and NVDA screen readers. Using Chrome with a screen reader is now fast and stable, unlike the previous implementation. However, note that most advanced functionality is still not supported, and much work remains to make Chrome work well with a screen reader. This is a necessary step to improve stability first. BUG=25564 BUG=13291 TEST=See http://codereview.chromium.org/1806001 Review URL: http://codereview.chromium.org/1637018 TBR=dmazzoni@chromium.org Review URL: http://codereview.chromium.org/2031004 git-svn-id: svn://svn.chromium.org/chrome/trunk/src@46642 0039d316-1c4b-4281-b951-d872f2087c98
* Reimplement accessibility of web content by caching the entire dmazzoni@chromium.org2010-05-061-113/+45
| | | | | | | | | | | | | | | | | | | | | | | | | | accessibility tree in the browser process. Adds new RPCs for a browser tab to request accessibility info from a renderer; the renderer responds with a complete tree of accessibility metadata for the entire DOM, which is then cached in the RenderWidgetHostView. This part is cross-platform and will help with accessibility on both Windows and Mac OS X. For Windows, MSAA support for web content has been rewritten to use this new cache. Tested in JAWS and NVDA screen readers. Using Chrome with a screen reader is now fast and stable, unlike the previous implementation. However, note that most advanced functionality is still not supported, and much work remains to make Chrome work well with a screen reader. This is a necessary step to improve stability first. BUG=25564 BUG=13291 TEST=See http://codereview.chromium.org/1806001 Review URL: http://codereview.chromium.org/1637018 git-svn-id: svn://svn.chromium.org/chrome/trunk/src@46567 0039d316-1c4b-4281-b951-d872f2087c98
* Landing Chris Guillory CL.jcampan@chromium.org2010-02-241-6/+9
| | | | | | | | | | | | See original review at: http://codereview.chromium.org/626014/show BUG=None TEST=None Review URL: http://codereview.chromium.org/657020 git-svn-id: svn://svn.chromium.org/chrome/trunk/src@39828 0039d316-1c4b-4281-b951-d872f2087c98
* Introduce WebAccessibilityControllerImpl.dglazkov@chromium.org2009-11-041-0/+7
| | | | | | | | | | | | Removes accessibility-related WebCore dependencies from glue. R=darin TEST=none BUG=24616 Review URL: http://codereview.chromium.org/348063 git-svn-id: svn://svn.chromium.org/chrome/trunk/src@30986 0039d316-1c4b-4281-b951-d872f2087c98
* Adds support for WAI-ARIA role option, by adding exposure of MSAA role ↵klink@chromium.org2009-08-271-0/+1
| | | | | | | | | | | ROLE_SYSTEM_LISTITEM. BUG=19982 TEST=Assign @role option on a child element to either menu or listbox. It will be exposed as either menuitem or listitem, respectively. Review URL: http://codereview.chromium.org/173488 git-svn-id: svn://svn.chromium.org/chrome/trunk/src@24662 0039d316-1c4b-4281-b951-d872f2087c98
* Adds support for WAI-ARIA roles application, document, radiogroup, region, ↵klink@chromium.org2009-08-251-1/+5
| | | | | | | | | | | separator, status and tooltip. BUG=19982 TEST=Assign @role application, document, radiogroup, region, separator, status or tooltip to any dom element, and use Inspect32 (or similar tool) to see it exposed correctly. Review URL: http://codereview.chromium.org/174382 git-svn-id: svn://svn.chromium.org/chrome/trunk/src@24262 0039d316-1c4b-4281-b951-d872f2087c98
* Adds support and exposure of additional accessibility roles. Includes naming ↵klink@chromium.org2009-08-221-1/+4
| | | | | | | | | | of the LocationBar, and correctly exposing MSAA/ARIA roles for Documents, Graphics, Menubars and Toolbars. BUG=13291,19982 TEST=Assign @role menubar or toolbar to any dom element, and use Inspect32 (or similar tool) to see it exposed correctly. In the same way, <html> tag is exposed as role document. Review URL: http://codereview.chromium.org/174252 git-svn-id: svn://svn.chromium.org/chrome/trunk/src@24049 0039d316-1c4b-4281-b951-d872f2087c98
* Adds support for an initial set of WAI-ARIA roles, needed to support screen ↵klink@chromium.org2009-07-071-28/+37
| | | | | | | | | | | readers in AJAX web applications (e.g. Gmail). BUG=None TEST=None Review URL: http://codereview.chromium.org/149265 git-svn-id: svn://svn.chromium.org/chrome/trunk/src@20094 0039d316-1c4b-4281-b951-d872f2087c98
* Fixes an issue where the MSAA information was not reported back correctly to ↵klink@chromium.org2009-06-051-4/+0
| | | | | | | | the AT, upon the HWND containing the web content first receiving focus. Note that this is not a full fix for the bug below, but one more piece to resolving it.BUG=13291TEST=none Review URL: http://codereview.chromium.org/118206 git-svn-id: svn://svn.chromium.org/chrome/trunk/src@17778 0039d316-1c4b-4281-b951-d872f2087c98
* Adds propagation and handling of render-side focus events, for the benefit ↵klink@chromium.org2009-05-201-0/+4
| | | | | | | | of assistive technologies (accessibility). Also cleans up the handling of WM_GETOBJECT in RenderWidgetHostViewWin and WidgetWin, as well as in BrowserAccessibilityManager. Review URL: http://codereview.chromium.org/115374 git-svn-id: svn://svn.chromium.org/chrome/trunk/src@16449 0039d316-1c4b-4281-b951-d872f2087c98
* Removes all use of COM and dependencies on Windows-specific classes ↵klink@chromium.org2009-03-201-0/+155
(including the use of AccessibleBase and AccessibleDocument) in the glue accessibility implementation.Introduces the GlueAccessibilityObject, which serves as a platform-independent wrapper directly around WebKit's AccessibilityObject (also platoform-independent).Updates naming/comments to reflect the independence of IAccessible both in glue and (where appropriate) in the browser-side accessibility. Review URL: http://codereview.chromium.org/46013 git-svn-id: svn://svn.chromium.org/chrome/trunk/src@12207 0039d316-1c4b-4281-b951-d872f2087c98