Reland r100733 - Cancel plugin channel requests when the renderer goes away.

Logic:
- Profile shutdown kills all renderer processes
- When the RMF detects the channel closing, it kills off any plugin channel requests from:
* PluginService (which needs to check the PluginServiceFilter on the FILE thread)
* PluginProcessHost (which may need to wait for the channel to get established)
- RMF uses the new OnPluginProcessHostFound() to cancel at the PluginService or PluginProcessHost

Modified in Reland:
* PluginProcessHost may be blocked on the browser<=>plugin channel to be established, OR on the plugin<=>renderer channel to be established.
* Already covered the former case in the previous changelist (pending_requests_) but not the latter case (sent_requests_).
* Cover both cases and add tests.

BUG=94704
TEST=New PluginService tests

Review URL: http://codereview.chromium.org/7887027

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@101181 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 9 insertions, 2 deletions

diff --git a/chrome/browser/plugin_data_remover.cc b/chrome/browser/plugin_data_remover.cc
index 5b06586..debac0b 100644
--- a/chrome/browser/plugin_data_remover.cc
+++ b/chrome/browser/plugin_data_remover.cc
@@ -24,9 +24,9 @@
 
 namespace {
 
-const char* kFlashMimeType = "application/x-shockwave-flash";
+const char kFlashMimeType[] = "application/x-shockwave-flash";
 // The minimum Flash Player version that implements NPP_ClearSiteData.
-const char* kMinFlashVersion = "10.3";
+const char kMinFlashVersion[] = "10.3";
 const int64 kRemovalTimeoutMs = 10000;
 const uint64 kClearAllData = 0;
 
@@ -97,6 +97,13 @@ void PluginDataRemover::SetPluginInfo(
     const webkit::WebPluginInfo& info) {
 }
 
+void PluginDataRemover::OnFoundPluginProcessHost(
+    PluginProcessHost* host) {
+}
+
+void PluginDataRemover::OnSentPluginChannelRequest() {
+}
+
 void PluginDataRemover::OnChannelOpened(const IPC::ChannelHandle& handle) {
   ConnectToChannel(handle);
   // Balancing the AddRef call in StartRemoving.