[Chromium] Move getPluginsList out of PlatformSupport
https://bugs.webkit.org/show_bug.cgi?id=96507

Reviewed by Darin Fisher.

Part of a refactoring series. See tracking bug 82948.

Source/Platform:

* Platform.gypi:
* chromium/public/Platform.h:
(WebKit):
(Platform):
(WebKit::Platform::getPluginList):
* chromium/public/WebPluginListBuilder.h: Added.
(WebKit):
(WebPluginListBuilder):

Source/WebCore:

* WebCore.gypi:
* platform/chromium/PlatformSupport.h:
(PlatformSupport):
* plugins/chromium/PluginDataChromium.cpp:
(WebCore::PluginCache::plugins):
* plugins/chromium/PluginListBuilder.cpp: Added.
(WebKit):
(WebKit::PluginListBuilder::addPlugin):
(WebKit::PluginListBuilder::addMediaTypeToLastPlugin):
(WebKit::PluginListBuilder::addFileExtensionToLastMediaType):
* plugins/chromium/PluginListBuilder.h: Added.
(WebKit):
(PluginListBuilder):
(WebKit::PluginListBuilder::PluginListBuilder):

Source/WebKit/chromium:

* WebKit.gyp:
* public/WebPluginListBuilder.h:
* public/platform/WebKitPlatformSupport.h:
(WebKit):
(WebKit::WebKitPlatformSupport::idbFactory):
* src/PlatformSupport.cpp:
(WebCore::PlatformSupport::idbFactory):
* src/WebPluginListBuilderImpl.cpp: Removed.
* src/WebPluginListBuilderImpl.h: Removed.


git-svn-id: https://svn.webkit.org/repository/webkit/trunk/Source/Platform/chromium/public@137177 268f45cc-cd09-0410-ab3c-d52691b4dbfc