Declare some zoom constants in the headers so we don't have to duplicate the values in plugins.

BUG=107063
TEST=none

Review URL: http://codereview.chromium.org/8926001

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@114586 0039d316-1c4b-4281-b951-d872f2087c98

2 files changed, 8 insertions, 8 deletions

diff --git a/content/common/page_zoom.cc b/content/common/page_zoom.cc
index d9b6b51..889d2e4 100644
--- a/content/common/page_zoom.cc
+++ b/content/common/page_zoom.cc
@@ -10,16 +10,10 @@ namespace content {
 
 const double kMinimumZoomFactor = 0.25;
 const double kMaximumZoomFactor = 5.0;
+const double kEpsilon = 0.001;
 
 bool ZoomValuesEqual(double value_a, double value_b) {
-  // Epsilon value for comparing two floating-point zoom values. We don't use
-  // std::numeric_limits<> because it is too precise for zoom values. Zoom
-  // values lose precision due to factor/level conversions. A value of 0.001
-  // is precise enough for zoom value comparisons.
-  const double epsilon = 0.001;
-
-  return (std::fabs(value_a - value_b) <= epsilon);
+  return (std::fabs(value_a - value_b) <= kEpsilon);
 }
 
 }  // namespace content
-
diff --git a/content/public/common/page_zoom.h b/content/public/common/page_zoom.h
index 3abe75a..90442a9 100644
--- a/content/public/common/page_zoom.h
+++ b/content/public/common/page_zoom.h
@@ -26,6 +26,12 @@ CONTENT_EXPORT extern const double kMinimumZoomFactor;
 // WebView::maxTextSizeMultiplier.
 CONTENT_EXPORT extern const double kMaximumZoomFactor;
 
+// Epsilon value for comparing two floating-point zoom values. We don't use
+// std::numeric_limits<> because it is too precise for zoom values. Zoom
+// values lose precision due to factor/level conversions. A value of 0.001
+// is precise enough for zoom value comparisons.
+CONTENT_EXPORT extern const double kEpsilon;
+
 // Test if two zoom values (either zoom factors or zoom levels) should be
 // considered equal.
 CONTENT_EXPORT bool ZoomValuesEqual(double value_a, double value_b);