This adds some plumbing for propagating the status and error code of a

renderer process that went away so that we can tell at the UI level
what happened to the tab: did it crash, or was it killed by the OOM
killer (or some other reason). This is in preparation for implementing
a new UI for when a process is killed by the OOM on ChromeOS which
handles it differently from a crash.

Most of the changes are modifications of the argument list to include
a status and error code for the exited process, but in addition the
following was done:

- Changed the name of DidProcessCrash to GetTerminationStatus.
- Added some new enum values to TerminationStatus enum (and named it)
in process_util.h, so it can be used as the status returned by
WhatHappenedToProcess.
- Improved process_util_unittest to actually test for crashing and
terminated processes on all platforms.
- Added a new notification for renderers that were killed.
- Added error code information to crash notification.
- Added status and error code information to renderer IPC message for
RenderViewGone.
- Added a UMA histogram count for number of renderer kills.

[This change was previously reviewed and LGTM'd:
http://codereview.chromium.org/3386014/show
but due to issues with "git cl push" was never committed to the tree.]

BUG=none
TEST=ran new unit test. Test passes on try servers.

Review URL: http://codereview.chromium.org/3869001

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@63067 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 3 insertions, 2 deletions

diff --git a/chrome/browser/renderer_host/render_widget_host_view_views.cc b/chrome/browser/renderer_host/render_widget_host_view_views.cc
index 25e8a88..f0a044f 100644
--- a/chrome/browser/renderer_host/render_widget_host_view_views.cc
+++ b/chrome/browser/renderer_host/render_widget_host_view_views.cc
@@ -215,7 +215,8 @@ void RenderWidgetHostViewViews::DidUpdateBackingStore(
   }
 }
 
-void RenderWidgetHostViewViews::RenderViewGone() {
+void RenderWidgetHostViewViews::RenderViewGone(base::TerminationStatus status,
+                                               int error_code) {
   Destroy();
 }
 
@@ -313,7 +314,7 @@ void RenderWidgetHostViewViews::Paint(gfx::Canvas* canvas) {
   DCHECK(!about_to_validate_and_paint_);
 
   // TODO(anicolao): get the damage somehow
-  //invalid_rect_ = damage_rect;
+  // invalid_rect_ = damage_rect;
   invalid_rect_ = bounds();
   about_to_validate_and_paint_ = true;
   BackingStoreX* backing_store = static_cast<BackingStoreX*>(